Five separate tornadoes made landfall in Oklahoma, said Rick Smith, a meteorologist with the National Weather Service in Norman. Oklahoma City and Norman were spared, but smaller towns to the northwest, south and southeast of Oklahoma City sustained damage. In Newcastle, south of Oklahoma City, a storm blew the steeple off Jesus Alive Church and flung it nearly 100 yards away, where it landed on the doorstep of the longtime pastor's 86-year-old mother, Lovina Frizzell.

A new round of tornadoes began two days after a monster twister ripped through the heart of Joplin, Missouri, killing more than 120 people. It was the deadliest single tornado in the United States in some 64 years. Storms also extended into Texas, where fans at the Texas Rangers-Chicago White Sox game in Arlington were asked to go to underground tunnels in the stadium, according to KTVT-TV in Dallas.

John Blake, vice president of communications for the Rangers, told the Weather Channel that the game had a crowd of 30,000 and that play was stopped about 8:30 pm because of hail. "We do have a lot of thunderstorm activity here this time of year," he said. "This hail is really starting to pile up on the field."

On the green fields near Carriglas, halfway between Dublin and Ireland's west coast, the wind whistles eerily around rows of half-finished houses. Most of these buildings are roofless, leaving their bare walls unprotected against the elements. Even the real estate brokers' for-sale signs and the project offices are gone. Hardly anyone in Carriglas believes that the houses will ever be finished. There are many of these ghost towns in Ireland, including 77 in small County Longford alone, which includes Carriglas. They could end up costing German taxpayers a lot of money, as part of the bill to be paid to rescue the euro.

That bill contains many unknowns, but almost none of them is as nebulous as the giant risk lurking in the balance sheet of the European Central Bank (ECB), in Frankfurt. Many bad loans have now ended up on that balance sheet, including ones that were used to build houses like those in Carriglas and elsewhere. No one knows how much they are worth today - and apparently no one really wants to know.

Since the beginning of the financial crisis, banks in countries like Ireland, Portugal, Spain and Greece have unloaded risks amounting to several hundred billion euros with central banks. The central banks have distributed large sums to their countries' financial institutions to prevent them from collapsing. They have accepted securities as collateral, many of which are - to put it mildly - not particularly valuable.

Instead of the world physically coming to an end on May 21 with a great, cataclysmic earthquake, as he had predicted, Harold Camping, 89, said he now believes his forecast is playing out "spiritually," with the actual apocalypse set to occur five months later, on October 21.

Camping, who launched a doomsday countdown in which some followers spent their life's savings in anticipation of being swept into heaven, issued his correction during an appearance on his "Open Forum" radio show from Oakland, California.

Reflecting on scripture afterward, Camping said it "dawned" on him that a "merciful and compassionate God" would spare humanity from "hell on Earth for five months" by compressing the physical apocalypse into a shorter time frame. But he insisted that October 21 has always been the end-point of his own End Times chronology, or at least, his latest chronology.

Spain is trying to assure markets it will manage to cut its deficit back to 6 percent of gross domestic product in 2011, but investors doubt it will reach that goal due to a struggling economy and the ongoing recapitalisation of its banking system.

"The stability programme that proposes reaching a deficit of 3 percent by 2013 is an ambitious plan that was comfortably met in the first year," central bank governor Miguel Angel Fernandez Ordonez told a conference in Madrid. "Now all the administrations - the central government, the autonomous regions, and the local authorities - must rigorously meet the targets fixed for this year and coming years."

Spain's ruling Socialists were reeling on Monday from stinging losses in local elections, and now have to walk a tightrope between voter anger over high unemployment and investor demands for austerity measures. Ordonez said that errors by the European Union in trying to resolve the euro zone debt crisis were partly to blame for Spain's high financing costs.

The Met Office said the ash had already reached northern Scotland and would spread to Wales, northern England and Northern Ireland by midday and across much of the UK by the end of the day. But forecasters said changing wind patterns make it hard to predict its exact path and concentrations would vary between regions.

The cancellations come just over a year after another volcanic eruption in Iceland caused widespread disruption across Europe, including the closure of UK airspace, amid concerns about the damage volcanic ash could cause to engine aircraft.

This year, in the UK, the decision on whether to fly or not in ash cloud conditions is down to individual airlines, although they have to apply to the Civil Aviation Authority (CAA) for final approval. Transport secretary Philip Hammond said the UK was better prepared than it had been in 2010 but it was difficult to predict what would happen this time.

The Supreme Court ordered California on Monday to release tens of thousands of its prisoners to relieve overcrowding, saying that "needless suffering and death" had resulted from putting too many inmates into facilities that cannot hold them in decent conditions. It is one of the largest prison release orders in the nation's history, and it sharply split the high court.

Justices upheld an order from a three-judge panel in California that called for releasing 38,000 to 46,000 prisoners. Since then, the state has transferred about 9,000 state inmates to county jails. As a result, the total prison population is now about 32,000 more than the capacity limit set by the panel.

Justice Anthony M Kennedy, speaking for the majority, said California's prisons had "fallen short of minimum constitutional requirements" because of overcrowding. As many as 200 prisoners may live in gymnasium, he said, and as many as 54 prisoners share a single toilet.

In dissent, Justice Antonin Scalia called the ruling "staggering" and "absurd." He said the high court had repeatedly overruled the 9th Circuit Court of Appeals for ordering the release of individual prisoners. Now, he said, the majority were ordering the release of "46,000 happy-go-lucky felons." He added that "terrible things are sure to happen as a consequence of this outrageous order." Justice Clarence Thomas agreed with him.

Among the 15 countries to win seats on the Geneva-based HRC on Friday was Congo, which joins 11 other countries ranked "not free" by the democracy advocacy group, Freedom House, based on an annual assessment of political freedoms and civil liberties.

Nonetheless, rights advocates did find some cause for cheer: In the only two regional groups to see any contest, Latin America and Eastern Europe, countries ranked "free" by Freedom House defeated candidates scoring a "partly free" grade. In Latin America, Nicaragua's leftist regime was edged out in a four-way race for three seats, won by Peru, Chile and Costa Rica; the Czech Republic and Romania beat Georgia in a three-way contest for two seats for the Eastern Europe group.

As expected, Kuwait secured the seat that Syria had been in line to win until President Bashar Assad withdrew his bid last week, after initially supportive Arab and Asian states bowed to pressure from Western governments and non-governmental activists. (Even though Syria was not standing, five countries still voted for it on Friday.) Every May for the past six years the UN General Assembly has held an "election" to fill a proportion of seats on the 47-member HRC, the world body's foremost human rights watchdog.

Despite the requirement that governments take into account candidates' human rights records, the General Assembly - voting under secret ballot - has ushered onto the council a total of 19 "not free" countries, some more than once. In most cases, they obtained votes well in excess of the 97 required in the 192-member General Assembly.

The HRC for the next year comprises:

"Free" countries (21): Austria, Benin, Belgium, Botswana, Chile, Costa Rica, Czech, Hungary, India, Indonesia, Italy, Mauritius, Mexico, Norway, Peru, Poland, Romania, Spain, Switzerland, United States and Uruguay.

"Not free" (12): Angola, Cameroon, China, Congo, Cuba, Jordan, Kyrgyzstan, Libya (currently suspended), Mauritania, Qatar, Russia, Saudi Arabia.

"Partly free" (14): Bangladesh, Burkina Faso, Djibouti, Ecuador, Guatemala, Kuwait, Malaysia, Maldives, Moldova, Nigeria, Philippines, Senegal, Uganda, Thailand.

As many as 18 British and French helicopters will be deployed to support rebels trying to consolidate gains against Gaddafi's forces. The helicopter operation - expected to be supported by Special Forces troops - will take the allies closer still to a full ground operation in Libya.

Whitehall officials said that later this week, the Apaches will begin flying missions in from HMS Ocean, a helicopter carrier in the Mediterranean. Their use was authorised by David Cameron at a meeting of the National Security Council after the Prime Minister asked military chiefs for new ways to increase the pressure on the Libyan regime.

"We are constantly looking for ways to intensify the diplomatic and military pressure on the Libyan regime," said a spokesman for Mr Cameron. One of the helicopters' principal tasks will be to enforce a 16-mile buffer zone around the beseiged city of Misurata.

The ease with which six Taliban militants stormed the PNS Mehran base in Karachi, close to the city's busy commercial airport, and destroyed two newly US-supplied P-3C Orion maritime surveillance aircraft has unnerved Pakistan's military establishment

The militants held off security forces for more than 16 hours, killed 12 naval personnel and injured 14. Their primary objective appeared to be some of the military's most sophisticated electronic warfare equipment, as they wiped out Pakistan's anti-submarine warfare capability in a single stroke. Ghazanfar Ali, a former brigadier general, said the Taliban attack would "hurt Pakistan's reputation as a nuclear weapons state" in the eyes of the international community, by emphasising the country's vulnerability.

In its arms race with arch-rival India, Pakistan developed nuclear weapons in the 1990s and carried out its first nuclear tests in 1998. Pakistan's security establishment insists that the nuclear arsenal is carefully guarded. Some analysts, however, argue that nuclear material used in the earlier phases of weapons production is more vulnerable.

Maleeha Lodhi, a former senior Pakistani diplomat, said there was considerable pressure on General Ashfaq Parvez Kayani, head of the country's military, from the US after the Bin Laden raid and from within his own ranks. Militants also blew up a bridge on a highway from Islamabad to Peshawar. The road had been considered one of the most secure in Pakistan.

ABC News spoke with lead forecaster Greg Carbin of the National Weather Service's National Severe Storm Laboratory and asked him why the 2011 tornado season has been so extraordinarily devastating. Is the death toll in 2011 significantly higher than previous years? Short Answer: Yes. The average death toll is normally 60 to 70.

Meteorologist Greg Carbin: "In the past decade the average annual death toll from tornadoes has been around 60 to 70 people. The average killer tornado claims about two lives and so what's going on this year is something well above that. ...We're now approaching about 500 fatalities for the year to date, just under that. That is something we have not experienced in this country in over 35 years and it still looks like we're still around the number nine as far as the deadliest year on record. So there have been many years in the past over the past couple of generations in which we've exceeded 500 fatalities in a year, it's just that they haven't occurred recently."

Have there been more tornadoes in 2011 than previous years? Short Answer: No, the tornadoes are just hitting populated areas.

Carbin: "There is no indication of an upward trend in either intensity or numbers. We've had a lot more reports of tornadoes, but most of those tornadoes are actually the weak tornadoes, the F-0. When you take out the F-0 tornadoes from the long-term record, there is very little increase in the total number of tornadoes, and we don't see any increase in the number of violent tornadoes. It's just that these things are coming, and they're very rare and extreme, and they happen to be hitting populated areas. So right now, no indication of an upward trend in the strong to violent tornadoes that we're seeing."

Large corporations that have boomed in India amid the country's nimble economy have been drawn to the US where unemployment has soared. Struggling residents desperate for work are paid between $12 and $14 a hour to be stationed in tiny cubicles for long shifts of telesales work.

Once the employees are established, many are offered the chance to be flown to India themselves - the same tactic Western countries have done in India. Experts said that the phenomenon, which could become more widespread in the coming years, is partly due to Indian workers demanding higher wages and higher living standards.

'The US became the fastest-growing location for us last year. We expect that to continue this year,' Genpact chief executive VN 'Tiger' Tyagarajan said. Joseph Vafi, an analyst at Jefferies & Co in San Francisco told the Washington Post: 'What you have going on in India are salary hikes. As these companies get larger and larger, it just makes sense for them to do some hiring in the States.' But compared with Indian workers, managers have complained that those from the US are 'spoiled' and 'lazy'.

An analysis has found that the official cost of the war so far - 100 million pounds - is a massive underestimate. Francis Tusa, editor of the Defence Analysis newsletter, said the true cost of all the bombs and sorties flown, up to the end of April, was about 300 million pounds.

But if the air campaign goes on for six months, as military chiefs have acknowledged is likely, Mr Tusa said the bill is likely to exceed 1 billion pounds by September. This is far higher than the 'tens of millions' that Chancellor George Osborne said would be spent back in March. One defence analyst told The Guardian: 'The final cost will depend on whether the Treasury is prepared to pay for replacements for all the bombs and missiles that have been used so far.'

Up to May 5, the British had flown 25 per cent of nearly 6,000 sorties over Libya - second only to the US forces. About 1,000 Britons are involved in the operation. The American total was inflated by a high number of sorties in the first week of the operation. In the five weeks up to May 5, Britain had flown more sorties than any other country.

A former Royal Navy admiral has attacked Nato's campaign in Libya, saying it risks becoming another open-ended commitment like Afghanistan and Iraq. Rear Admiral Chris Parry said the campaign 'defies strategic logic' and needs to be completely rethought before Libya descends into anarchy. He added that, just like Iraq and Afghanistan, it is a 'classic example of how to act in haste and repent at leisure'.

"Right now, socially, we are disintegrating," ElBaradei said on CNN's "Fareed Zakaria GPS," scheduled to air Sunday. "Economically we are not in the best state. Politically it's - it's like a black hole. We do not know where we are heading." ElBaradei said many Egyptians don't feel secure as the country struggles to create a new government after former president Hosni Mubarak was forced from power by protests earlier this year.

"People do not feel secure," ElBaradei said. "They are buying guns" to protect themselves, he said. ElBaradei said he wasn't sure when a presidential race could begin because there aren't any laws that outline "how to run a campaign, how you raise funds" or when candidates can become official. "What kind of state or regime we are going to have?" ElBaradei asked. "Is it a presidential system? Is it a parliamentary system? When are we going to have a new constitution?"

He also expressed concern about the influence of the Islamic group the Muslim Brotherhood, which has had longer to organize than other nascent political contenders. ElBaradei said the election may slip to next year given the uncertainty.

"We have asked our Chinese brothers to please build a naval base at Gwadar," Chaudhary Ahmed Mukhtar, Pakistan's defence minister, told the Financial Times, confirming that the request was conveyed to China during a visit last week by Yusuf Raza Gilani, Pakistan's prime minister. Hitherto, China has shied away from moves that might alienate the US and Beijing's neighbours, such as India, Malaysia and Indonesia. "China's rise is a beneficial force for peace and we have no hegemonic ambitions," said a Chinese official familiar with Beijing's security policy.

But Christopher Yung, senior research fellow at National Defense University in Washington, said in a recent paper "the nature and degree of China's access to out-of-area bases will be the ultimate indication and warning" of its eventual intention to become a global military power. A Pentagon official said: "We have questions and concerns about this development and China's intentions. But that is why we believe it is important to have a healthy, stable and continuous military-to-military relationship."

A senior Pakistani official familiar with Sino-Pakistani discussions on naval co-operation said: "The naval base is something we hope will allow Chinese vessels to regularly visit in the future and also use the place for repair and maintenance of their fleet in the [Indian Ocean region]." Such a foothold would be the first overseas location offering support to the People's Liberation Army navy for future out-of-area missions and so would be likely to reinforce international concerns over Beijing's longer-term military ambitions.

We tested out the example they provided - a query which attempted to convert 215 Euro to dollars - as well as several similar conversions and found that the results were just as Sophos Labs described them: A quick search [through the results] finds a number of other webpages which don't just use keywords related to currency conversion, but also other terms - "dirty sexist jokes", for instance.

What is occurring here is SEO poisoning, where bad guys create poisoned webpages related to certain search terms in the hope that you will come across them and infect your computer.

So what can you do? You can use security or filtering software - naturally Sophos Labs suggests that you use its own product, but there are plenty of options - and keep up your guard. Take a closer look at search results before you follow links. Consider if something seems strange or whether there is a trusted website you could go to instead.