A Tibetan exile shouts slogans after being detained for participating in an illegal protest against the visit of Chinese President Hu Jintao, outside the Oberoi Hotel where Hu staying, in New Delhi, India, March 28, 2012. (Manish Swarup/AP Photo)

A member of the press views an interactive exhibit depicting the wreck of the RMS Titanic on the ocean floor, during a media preview of the new exhibit "Titanic: 100 Year Obsession," at the National Geographic Museum in Washington. The exhibition opens to the public March 29 and runs through July 8, 2012. (Win McNamee/Getty Images)

Sara Hurtado and Adria Diaz of Spain perform during the Ice Dance Short Dance at the ISU 2012 World Figure Skating Championships in Nice, southern France, March 28, 2012. (Francois Mori/AP Photo)

Oh Sang Eun of South Korea is shown during a break in his match against Daniel Habesohn of Austria during the Liebherr Table Tennis Team World Cup 2012, March 28, 2012, in Dortmund, Germany. (Christof Koepsel/Bongarts/Getty Images)

Indonesian students perform a theatrical protest against the government's plan to raise fuel prices in Medan, North Sumatra, Indonesia, March 28, 2012. The Indonesian government plans to raise fuel prices by about 33 percent next month to avoid a budget deficit due to expensive fuel subsidies. (Binsar Bakkara/AP Photo)

A Brazilian military police officer patrols the Alemao shantytown in Rio de Janeiro, March 27, 2012. (Christophe Simon/AFP/Getty Images)

Pope Benedict XVI and Cuban President Raul Castro wave to the media after a meeting at the Consejos de Estado in Havana on the second day of his three-day visit to Cuba, March 27, 2012. (Joe Raedle/Getty Images)

Twin polar bears Lele, a male cub, and Jingjing, a female cub, play at Haichang Polar Ocean World, March 27, 2012, in Wuhan, China. (ChinaFotoPress via Getty Images)

A trail of slurry is deposited by a bomber during a run over a smoldering ridge in the Lower North Fork Wildfire burning in the foothills community of Conifer, Colo., southwest of Denver, March 27, 2012. (David Zalubowski/AP Photo)