This aerial photo shows the devastation of homes in Cottondale, Ala., sustained heavy damage on Thursday, April 28, 2011. A powerful and deadly tornado cut through Alabama Wednesday evening. President Barack Obama said he would visit Alabama on Friday to view damage and meet with the governor and families devastated by the storms. Mr. Obama has already expressed condolences by phone to Gov. Robert Bentley and approved his request for emergency federal assistance.
Credit: AP Photo/The Tuscaloosa News, Dusty Compton
Kate Middleton, right, and best man Prince Harry leave Westminster Abbey in London after a rehearsal in readiness for the royal wedding, Thursday, April 28, 2011. Kate Middleton and her bridesmaids, together with best man Prince Harry, rehearsed once more Thursday at Westminster Abbey, practicing the timing of the upcoming royal wedding to the last detail.
Credit: AP Photo/Sang Tan
People pray during a memorial service for the March 11 earthquake and tsunami victims at Flora Memorial Hall in Soma, Fukushima Prefecture, northeastern Japan, Thursday, April 28, 2011. Buddhist priests in black and gold robes chanted and rang bells Thursday to mark the 49th day since Japan's massive tsunami, when the dead are believed to end their restless wandering through the devastated coastline.
Credit: AP Photo/Hiro Komae
President Barack Obama leaves the stage in the East Room of the White House in Washington, Thursday, April 28, 2011, after he introduced a reworked national security team. From left are: U.S. Ambassador to Afghanistan-designate Ray Crocker; top commander-designate for U.S. forces in Afghanistan, Marine Corps Lt. Gen. John Allen; CIA Director-nominee Gen. David Petraeus; Defense Secretary-nominee Leon Panetta; outgoing Defense Secretary Robert Gates; the president; Vice President Joe Biden; Secretary of State Hillary Rodham Clinton; National Security Adviser Tom Donilon.
Credit: AP Photo/Charles Dharapak
A Yemeni schoolboy, reacts while shouting slogans with anti-government protestors during a demonstration demanding the resignation of Yemeni President Ali Abdullah Saleh, in Sanaa, Yemen, Thursday, April 28, 2011. Yemeni security forces have opened fire on a massive anti-government demonstration in the capital Sanaa, killing 12 protesters and wounding some 190, a doctor at the scene said.
Credit: AP Photo/Muhammed Muheisen
Gold medalist Canada's Patrick Chan skates with the national flag after free program at the ISU Figure Skating World championships in Moscow, Russia, Thursday, April 28, 2011.
Credit: AP Photo/Misha Japaridze
A royal enthusiast dressed with pictures of the royal family performs in the street in London, Thursday, April 28, 2011. Prince William and Kate Middleton are due to get married on Friday, April 29.
Credit: AP Photo/Daniel Ochoa de Olza
An injured Thai soldier rests at a hospital bed after clashes between Thai and Cambodia in Surin province, northeastern Thailand, Thursday, April 28, 2011. Artillery fire boomed across the Thai-Cambodian frontier for a seventh day Thursday as fierce border clashes erupted again between the two neighbors.
Credit: AP Photo/Wason Wanichakorn
Alyssa Rosen battles high winds and rain in Albany, N.Y., on Thursday, April 28, 2011.
Credit: AP Photo/Mike Groll
A Pakistani mother comforts her daughter who mourns the death of her brother killed in a blast in Karachi, Pakistan on Thursday, April 28, 2011. A roadside bomb hit a bus taking Pakistani navy employees to work in Karachi on Thursday, killing at least five people in the third such attack this week and just days after the army chief claimed to have "broken the backbone" of militants.
Credit: AP Photo/Shakil Adil