Pope Benedict XVI and Cuban President Raul Castro walk outside the Revolution palace at the end of their meeting in Havana, Tuesday, March 27, 2012. The meeting took place behind closed doors on the pontiff's second day on the island.(AP Photo/Gregorio Borgia) Susan Clark of Santa Monica, Calif., who opposes health care reform, stands with a red hand painted over her mouth to represent what she said is socialism taking away her choices and rights, in front of the Supreme Court in Washington, Wednesday, March 28, 2012, on the final day of arguments regarding the health care law signed by President Barack Obama. (AP Photo/Charles Dharapak) In this photo taken Monday, March 12, 2012, a Shiite girl sits under the big Alam reading the Quran outside the Imambargah Asna Hashri, in Islamabad, Pakistan. Roughly 20 percent of Pakistan's 180 million people are Shiite Muslims who have been targeted by radical Sunni Muslim groups. Most Pakistanis are Sunni Muslim. (AP Photo/Anja Niedringhaus) In photo taken Sunday, March 11, 2012 A Pakistani Christian girl plays with a balloon next to a wall with biblical paintings at the Christian colony in the center of Islamabad, Pakistan. Roughly five percent of Pakistan's 180 million people belong to minority religions, which include Hindu, Christian, Shiite Muslims and Ahmedis, according to the CIA World Factbook. (AP Photo/Anja Niedringhaus) Pope Benedict XVI waves to faithful as arrives to lead a Mass at Revolution Square in Havana, Cuba, Wednesday March 28, 2012. Pope Benedict XVI wraps up his visit to Cuba on Wednesday with an open-air Mass in the shrine of the Cuban revolution.(AP Photo/Ramon Espinosa) Rihanna poses for photographers in front of a London skyline atop a central London hotel during a photocall for the film 'Battleship', Wednesday, March 28, 2012. (AP Photo/Joel Ryan) England's batsman Jonathan Trott, front left, leaves after being dismissed with captain Andrew Strauss, right, while wiping their faces during the second day's play of their first test cricket match against Sri Lanka in Galle, Sri Lanka, Tuesday, March 27, 2012. (AP Photo/Eranga Jayawardena) Pakistani Prime Minister Syed Yusuf Raza Gilani, left, speaks to U.S. President Barack Obama during their bilateral meeting on the sidelines of the Nuclear Security Summit in Seoul, South Korea, Tuesday, March 27, 2012. (AP Photo/Pablo Martinez Monsivais) 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 on Tuesday, March 27, 2012. Firefighters are now able to actively battle the blaze on the ground that started on Monday and has already destroyed at least 16 homes in the rugged terrain. (AP Photo/David Zalubowski) Pakistani Prime Minister Yousuf Raza Gilani, left, talks with Indian Prime Minister Manmohan Singh as they attend a working lunch at the Nuclear Summit at the Coex Center, in Seoul, South Korea, Tuesday, March 27, 2012. (AP Photo/Pablo Martinez Monsivais) U.S. President Barack Obama, left, gets a reaction from Russian President Dmitry Medvedev, right, after jokingly covering up his microphone as they attend the opening plenary session at the Nuclear Security Summit at the Coex Center, in Seoul, South Korea, Tuesday, March 27, 2012. Sitting in the center is South Korean President Lee Myung-bak. (AP Photo/Pablo Martinez Monsivais) Nuns wait as worshippers gather in Revolution Square for the arrival of the Pope Benedict XVI to celebrate a Mass in Havana, Cuba, Wednesday, March 28, 2012. Pope Benedict XVI wraps up his visit to Cuba on Wednesday with an open-air Mass in the shrine of the Cuban revolution.(AP Photo/Ramon Espinosa) South Korean soldiers patrol inside the barbed-wire fence at Imjingak Pavilion near the border village of Panmunjom, the demilitarized zone which has separated the two Koreas since the Korean War, in Paju, South Korea, Tuesday, March 27, 2012. The leaders of South Korea, the United States and China issued stark warnings Tuesday about the threat of nuclear terrorism during the final day of a nuclear summit that has so far been upstaged by North Korea's long-range rocket launch plans. (AP Photo/Ahn Young-joon) A man looks at a tree decorated with South Korean national flags in downtown Seoul, South Korea, Tuesday, March 27, 2012. The country is hosting the two-day Nuclear Security Summit. (AP Photo/Lee Jin-man) U.S. President Barack Obama, left, laughs with Kazakhstan President Nursultan Nazarbayev, center, and Russian President Dmitry Medvedev during their joint statement at the Nuclear Security Summit at the Coex Center, in Seoul, South Korea, Tuesday, March 27, 2012. (AP Photo/Pablo Martinez Monsivais) U.S. President Barack Obama, left, stands with Kazakhstan President Nursultan Nazarbayev, center, and Russian President Dmitry Medvedev during their joint statement at the Nuclear Security Summit at the Coex Center, in Seoul, South Korea, Tuesday, March 27, 2012. (AP Photo/Pablo Martinez Monsivais) U.S. President Barack Obama and South Korean President Lee Myung-bak, look for their marked positions on the floor as they arrive for a group photo session for the Nuclear Security Summit in Seoul, South Korea, Tuesday, March 27, 2012. (AP Photo/Pablo Martinez Monsivais) U.S. President Barack Obama, third from left in front row, and South Korean President Lee Myung-bak, fourth from left in front row, wave along with other leaders during a group photo session for the Nuclear Security Summit in Seoul, South Korea, Tuesday, March 27, 2012. (AP Photo/Pablo Martinez Monsivais) U.S. President Barack Obama covers the microphone as he arrives at the plenary session of the Nuclear Security Summit at the Coex Center in Seoul, South Korea, Tuesday, March 27, 2012. At left is Kazakh President Nursultan Nazarbayev. (AP Photo/Susan Walsh) U.S. President Barack Obama covers the microphone as he arrives at the plenary session of the Nuclear Security Summit at the Coex Center in Seoul, South Korea, Tuesday, March 27, 2012. (AP Photo/Susan Walsh) Back dropped by an image of Cuba's revolutionary hero Ernesto 'Che' Guevara, Pope Benedict XVI waves to faithful from his popemobile as arrives at Revolution Square for a Mass in Havana, Cuba, Wednesday, March. 28, 2012. (AP Photo/Ramon Espinosa) Pope Benedict XVI and Cuban President Raul Castro walk outside the Revolution palace at the end of their meeting in Havana, Tuesday, March 27, 2012. The meeting took place behind closed doors on the pontiff's second day on the island.(AP Photo/Gregorio Borgia) Britain's Prime Minister David Cameron, left, greets IOC President Jacques Rogge at Downing Street in London, Wednesday, March 28, 2012. Cameron is meeting with International Olympic Committee President Jacques Rogge and officials, amid the final inspection visit before the games by the IOC coordination commission. (AP Photo/Kirsty Wigglesworth) A model presents a creation by designer Hu Sheguang during the China Fashion Week in Beijing, China, Tuesday, March 27, 2012. (AP Photo/Alexander F. Yuan) A group of women dressed in white T-shirts with the message that reads in Spanish; "Bienvenido," or "Welcome," wave to the pontiff upon his arrival at the Jose Marti International airport in Havana,Cuba, Tuesday March 27, 2012. (AP Photo/Franklin Reyes) Workers clean the catwalk before the start of a show for Autumn/Winter 2012-2013 collection during China Fashion Week in Beijing, China, Tuesday, March 27, 2012. (AP Photo/ Vincent Thian) Behind bars, a Mara Salvatrucha gang member attends a mass celebrated by Archbishop Luigi Pezzuto, Apostolic Nuncio to El Salvador, and head army and police chaplain Monsignor Fabio Colindres at a prison in Ciudad Barrios, El Salvador, Monday, March 26, 2012. According to Dionisio Aristides Umanzor, known as El Sirra, leader of the Mara Salvatrucha gang, leaders of the Mara Salvatrucha and the Mara 18, El Salvador's two largest street gangs, have reached a truce, reducing the country's homicide rate, one of the highest in the world. (AP Photo/Luis Romero) Mara Salvatrucha gang members attend a mass celebrated by Archbishop Luigi Pezzuto, Apostolic Nuncio to El Salvador, and head army and police chaplain Monsignor Fabio Colindres at a prison in Ciudad Barrios, El Salvador, Monday, March 26, 2012. According to Dionisio Aristides Umanzor, known as El Sirra, leader of the Mara Salvatrucha gang, leaders of the Mara Salvatrucha and the Mara 18, El Salvador's two largest street gangs, have reached a truce, reducing the country's homicide rate, one of the highest in the world. (AP Photo/Luis Romero) Traffic makes its way in a market area as residents return to work and resume their daily activities, almost a week after a military coup, in Bamako, Mali Tuesday, March 27, 2012. The West African regional bloc on Tuesday suspended Mali following last week's coup and said it was sending a delegation there within 24 hours in a bid to restore democracy. (AP Photo/Aliou Sissoko) Tracy Martin, center, speaks at the Sanford City Commission meeting with Trayvon's mother, Sybrina Fulton, left, and the family lawyer, Benjamin Crump at the Sanford Civic Center in Sanford Fla., Monday, March 26, 2012. Martin, a black teen, was fatally shot by a neighborhood watch captain last month. (AP Photo/Julie Fletcher) Ottawa Senators' Daniel Alfredsson (11) puts the puck past Winnipeg Jets' goaltender Ondrej Pavelec (31) during the third period of an NHL hockey game in Winnipeg, Manitoba, Monday, March 26, 2012. Ottawa won 6-4. (AP Photo/The Canadian Press, Trevor Hagan) Amy Brighton from Medina, Ohio, who opposes health care reform, rallies in front of the Supreme Court in Washington, Tuesday, March 27, 2012, as the court continues arguments on the health care law signed by President Barack Obama. (AP Photo/Charles Dharapak) Pope Benedict XVI, left, and Cuban President Raul Castro walk outside the Revolution palace at the end of their meeting in Havana, Tuesday, March 27, 2012. The meeting took place behind closed doors on the pontiff's second day on the island.(AP Photo/Javier Galeano) Faithful hold rosaries during an open-air Mass led by Pope Benedict XVI at Revolution Square in Havana, Cuba, Wednesday March 28, 2012. (AP Photo/Javier Galeano) Pope Benedict XVI waves to faithful as arrives to lead a Mass at Revolution Square in Havana, Cuba, Wednesday March 28, 2012. Pope Benedict XVI wraps up his visit to Cuba on Wednesday with an open-air Mass in the shrine of the Cuban revolution.(AP Photo/Gregorio Borgia) In this picture made available by the Vatican newspaper Osservatore Romano Pope Benedict XVI meets with Fidel Castro in Havana, Wednesday, March 28, 2012. (AP Photo/Osservatore Romano) In this picture made available by the Vatican newspaper Osservatore Romano Pope Benedict XVI, right, meets with Fidel Castro in Havana, Cuba, Wednesday March 28, 2012. (AP Photo/Osservatore Romano) In this picture made available by the Vatican newspaper Osservatore Romano Pope Benedict XVI, right, meets with Cuban leader Fidel Castro in Havana, Cuba, Wednesday March 28, 2012. (AP Photo/Osservatore Romano) In this picture made available by the Vatican newspaper Osservatore Romano Pope Benedict XVI meets with Fidel Castro in Havana, Wednesday, March 28, 2012. (AP Photo/Osservatore Romano) A sprinkler sprays water onto flowers as Waddon Pond in south London, Tuesday, March 27, 2012 as Britain continue to enjoy warm weather with temperatures rising to over 20C (68 Fahrenheit) compared with highs of 11-12°C (52-54 Fahrenheit) which are the norm for this time of year. (AP Photo/Sang Tan) Pope Benedict XVI celebrates a Mass at Revolution Square in Havana, Cuba, Wednesday March 28, 2012. Benedict wraps up his visit to Cuba on Wednesday with an open-air Mass in the shrine of the Cuban revolution. (AP Photo/Gregorio Borgia) An Indonesian police officer fires a tear gas launcher to disperse student protesters during a protest against the government's plan to raise fuel prices in Jakarta, Indonesia, Tuesday, March 27, 2012. Police fired tear gas and water canons to disperse thousands of rock-throwing Indonesians protesting plans to push up fuel prices by more than 30 percent. (AP Photo/Tatan Syuflana) Sauber Formula One driver Sergio Perez of Mexico celebrates his second place finish on the podium with race winner Ferrari Formula One driver Fernando Alonso, right, of Spain at the Malaysian Formula One Grand Prix at Sepang, Malaysia, Sunday, March 25, 2012. (AP Photo/Lai Seng Sin) Ferrari Formula One driver Fernando Alonso of Spain celebrates on the podium after winning the Malaysian Formula One Grand Prix at Sepang, Malaysia, Sunday, March 25, 2012. (AP Photo/Dita Alangkara) Ferrari Formula One driver Fernando Alonso of Spain celebrates as he gets the chequered flag to win the Malaysian Formula One Grand Prix at Sepang, Malaysia, Sunday, March 25, 2012. (AP Photo/Lai Seng Sin) Members of a Chinese guard of honor contingent rehearse for the welcome ceremony for the Irish Prime Minister Enda Kenny outside the Great Hall of the People in Beijing, China, Tuesday, March 27, 2012. (AP Photo/Ng Han Guan) A Pakistani model has make up applied before a fashion show in Karachi, Pakistan, Monday, March 26, 2012. The show was organized on the eve of the launch of a fashion magazine in Pakistan which aims to introduce ethical fashion in the Pakistani fashion industry. (AP Photo) In this photo taken Sunday, March 11, 2012, Pakistani Christian men play cards next to a wall with biblical paintings at the Christian colony in the center of Islamabad, Pakistan. Targeted assassinations, mob gatherings led by outlawed Islamic extremists groups outside places of worship and now a spike in forced conversions has Pakistan's religious minorities wondering if they have a place in Pakistan. (AP Photo/Anja Niedringhaus)