A destroyed apartment complex is seen in Joplin

A destroyed apartment complex is seen in Joplin, Mo. Tuesday, May 24, 2011. A large tornado moved through much of the city Sunday, damaging a hospital and hundreds of homes and businesses.
damaging a hospital ..

A destroyed neighborhood is seen in Joplin, Mo. Tuesday, May 24, 2011. A large tornado moved through much of the city Sunday, damaging a hospital and hundreds of homes and businesses.
large tornado

A destroyed neighborhood is seen in Joplin, Mo. Tuesday, May 24, 2011. A large tornado moved through much of the city Sunday, damaging a hospital and hundreds of homes and businesses.
video shows lightning inside a massive tornado

This frame grab from video shows lightning inside a massive tornado on Sunday, May 22, 2011, outside Joplin, Mo. The tornado tore a 6-mile path across southwestern Missouri killing at least 89 people as it slammed into the city of Joplin, ripping into a hospital, crushing cars like soda cans and leaving a forest of splintered tree trunks behind where entire neighborhoods once stood.
Oil police cadets take part in a training

Oil police cadets take part in a training course at Camp Dublin in Baghdad May 15, 2011. Iraq has some of the world's biggest oil reserves and has signed deals with foreign oil companies to boost its production capacity to 12 million barrels per day by 2017, which would make it a close rival to global oil giant Saudi Arabia. Protecting its oil infrastructure is crucial as the country tries to rebuild more than eight years after the U.S.-led invasion that ousted Saddam Hussein, and as Washington prepares to withdraw U.S. troops at the end of this year. Picture taken May 15, 2011
A man fishes as geese swim

A man fishes as geese swim in a partially dried-up river channel at a branch of Hanjiang River in Wuhan, Hubei province, May 25, 2011. The worst drought in 50 years which hit the middle and lower reaches of the Yangtze River has affected 9.89 million people in four central provinces, including Hunan, Hubei, Jiangxi and Anhui, Xinhua News Agency reported.
A half-mile-wide tornado moves north in Canadian County

A half-mile-wide tornado moves north in Canadian County after having just crossed SH-3, the Northwest Expressway, west of SH-4 moving towards Piedmont, Okla. Tuesday, May 24, 2011.
NASA's Mars Exploration Rover Spirit

The deck of NASA's Mars Exploration Rover Spirit is so dusty that the rover almost blends into the dusty background in this image assembled from frames taken by the panoramic camera (Pancam) during the period October 26-29, 2007. Dust on the solar panels reduces the amount of electrical power the rover can generate from sunlight each sol. The vertical projection used here produces the best view of the rover deck, though it distorts the ground and antennas somewhat. The eight-pointed star shape near the front of the rover (bottom of the image) marks the location of the camera mast, which is out of view of the Pancam atop the mast. NASA announced May 24, 2011 that it will cease its daily attempts to contact Spirit, the robotic rover on Mars that went incommunicado last year
Courtney Montgomery

In this photo taken May 19, 2011, Courtney Montgomery, right, and her mother Michelle Mescall pose together at Duke University Medical Center in Durham, N.C., Thursday, May 19, 2011. Given a choice Courtney had refused a heart transplant; but then she met another teen who'd just had one, and was doing well.
A child walks during a road blockade in Desaguadero, Peru

A child walks during a road blockade in Desaguadero, Peru, on the border with Bolivia, Wednesday, May 18, 2011. Residents of the shores of Lake Titicaca in the Peruvian side, blocked the traffic along the highway that links the two countries to protest against a minning concession for the Canadian company Santa Ana, fearing it will lead to the lake's pollution.
A man speaks on a public phone

A man speaks on a public phone beside a private-licenced shop selling religious items in Havana May 24, 2011. The salvation of socialism in Cuba is taking some odd turns, with words like "competition," "marketing" and "opportunity" being heard for the first time in decades on the communist-led island. The government reported recently that 310,000 Cubans are working legally for themselves, of whom 221,000 have received their licenses for self-employment since last fall, when Castro announced an expansion of the private sector.
A fisherman rides

A fisherman rides a motor tricycle to transport dead fish killed by drought at his fish farm at Honghu Lake in Luoshan county, Hubei province May 24, 2011. The lingering drought devastating the middle and lower reaches of the Yangtze River since May is expected to affect agricultural production in some regions and this may push up prices of farm products, analysts say, Xinhua News Agency reported. Picture taken May 24, 2011.
picture at colonial-era fortress 'El Morro'

A tourist poses for a picture at colonial-era fortress 'El Morro' with Havana in the background as storm clouds gather in the sky May 24, 2011.
A tuna fish

A tuna fish is cut in pieces as onlookers watch on Havana's seafront boulevard 'El Malecon' May 20, 2011. The Tuna fish was caught by Cuban fisherman Yordan Martinez in what is his biggest catch till date, taking him around four hours using a 130 pound big game fishing line trolling from his boat around 5 miles from the shore north of Havana.
traditional Andean Indigenous mass wedding in La Paz, Bolivia

Couples participate in a traditional Andean Indigenous mass wedding in La Paz, Bolivia, Saturday May 7, 2011. Some 350 couples participated in this event, having the possibility to choose the wedding godfather, according to an ancient tradition, who this time was Bolivia's President Evo Morales.
A tornado passes near the Ryan Ranch

A tornado passes near the Ryan Ranch subdivision in southern Denton County, Texas Tuesday, May 24 2011. It was unclear if this one touched down. Funnel clouds were reported across the northern suburbs of Dallas and Fort Worth around sundown Tuesday, with brief tornado touchdowns reported in the northern suburbs.
tornado tore through Joplin killing at least 122 people

Damage is seen one day after a tornado tore through Joplin killing at least 122 people on May 24, 2011 in Joplin, Missouri. The tornado that ripped through the town of about 50,000 people May 22, is being called the deadliest single tornado in the U.S. in 60 years.