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Mandatory Credit: Photo by AGF s.r.l./REX Shutterstock (4728046a) Pope Francis I General papal audience at St. Peter's Square, The Vatican, Rome, It...

Pope Francis salutes the crowd as he arrives to lead his open-air weekly audience in St. Peter's Square on April 29, 2015 at the Vatican. AFP PHOTO /...

European Council President Donald Tusk arrives for a debate on concrete action to halt the drowning of Mediterranean migrants and refugees on April 2...

European Council President Donald Tusk delivers a speech during a debate on concrete action to halt the drowning of Mediterranean migrants and refuge...

Mandatory Credit: Photo by Jonathan Hordle/REX Shutterstock (4727875f) Ice sculptures of David Cameron, Ed Milliband and Nick Clegg Ice sculptures o...

Mandatory Credit: Photo by Jonathan Hordle/REX Shutterstock (4727875g) Ice sculpture of David Cameron Ice sculptures of David Cameron, Ed Milliband...

Mandatory Credit: Photo by Michael McGurk/REX Shutterstock (4727965b) Nicola Sturgeon, SNP leader Scotish National Party general election campaignin...

Mandatory Credit: Photo by Michael McGurk/REX Shutterstock (4727965c) Nicola Sturgeon, SNP leader Scotish National Party general election campaignin...

Mandatory Credit: Photo by AGF s.r.l./REX Shutterstock (4728046d) Pope Francis I General papal audience at St. Peter's Square, The Vatican, Rome, It...

Mandatory Credit: Photo by AGF s.r.l./REX Shutterstock (4728046e) Pope Francis I General papal audience at St. Peter's Square, The Vatican, Rome, It...

Mandatory Credit: Photo by AGF s.r.l./REX Shutterstock (4728046f) Pope Francis I General papal audience at St. Peter's Square, The Vatican, Rome, It...

Mandatory Credit: Photo by Erik Pendzich/REX Shutterstock (4728238n) Jenny McCarthy Dress for Success, New York, America - 29 Apr 2015

Mandatory Credit: Photo by APAImages/REX Shutterstock (4734882b) Palestinian Prime Minister Rami Hamdallah meets with the Rabi El-Gamal family Pales...

Mandatory Credit: Photo by APAImages/REX Shutterstock (4734882c) Palestinian Prime Minister Rami Hamdallah chairs a meeting Palestinian Prime Minist...

Survivors of Saturday's earthquake wait to board a military plane evacuating injured and stranded Indians from Kathmandu to New Delhi during a midnigh...

U.S. President Barack Obama speaks at a joint press conference with Japanese Prime Minister Shinzo Abe following their summit talks at the White House...

Japanese rescue workers remove debris at the site of a collapsed temple in Kathmandu on April 28, 2015, in the wake of the deadly earthquake that stru...

German Chancellor Angela Merkel leads the weekly cabinet meeting of her government at the chancellery in Berlin, Germany, Wednesday, April 29, 2015. (...

Buses loaded with Nepalese people going to their hometowns prepare to leave Kathmandu, Nepal, Wednesday, April 29, 2015. Thousands of people are linin...

Pope Francis prays during the weekly general audience in St. Peter's Square at the Vatican, Wednesday, April 29, 2015. (AP Photo/Alessandra Tarantino)

Destroyed villages sit on mountain tops near the epicenter of Saturday's massive earthquake, in the Gorkha District of Nepal, Wednesday, April 29, 201...

A Yemeni man looks at a crater, at the Sanaa International airport, in Yemen, Wednesday, April 29, 2015. Saudi-led coalition warplanes pounded Shiite...

Daredevil performer Nik Wallenda walks untethered along the rim of the Orlando Eye, the city's new, 400-foot observation wheel, Wednesday, April 29, 2...

Blacksmith prepare a replica of the Dachau Nazi concentration camp gate, with the writing "Arbeit macht frei" (Work Sets you Free) at the main entranc...

An Earthquake-affected Nepalese mother administers medicine to her baby girl at the newly opened Israeli field hospital for earthquake victims in Kath...

An Earthquake-affected Nepalese woman has her temperature recorded, with her daughter standing beside her at the newly opened Israeli field hospital f...

A Nepalese woman looks out from a bus leaving Kathmandu, Nepal, Wednesday, April 29, 2015. Thousands of people are lining up at bus stations in Kathma...

Horses train during an early during morning workout at Churchill Downs Wednesday, April 29, 2015, in Louisville, Ky. (AP Photo/Charlie Riedel), APTOPI...

Exercise rider Joel Barrientos rides Kentucky Derby hopeful International Star during a workout at Churchill Downs Wednesday, April 29, 2015, in Louis...

Exercise rider Dana Barnes rides Kentucky Derby hopeful Dortmund during a workout at Churchill Downs Wednesday, April 29, 2015, in Louisville, Ky. (AP...

National Teacher of the Year Shanna Peeples of Amarillo, Texas, and President Barack Obama arrive in the Rose Garden of the White House in Washington,...

Burundi riot police fire tear gas as they chase demonstrators during clashes in Bujumbura, Burundi, Wednesday April 29, 2015. Protesters were again on...

A Carabineri (Italian paramilitary police) officer patrols the Porta Nuova business district as the Bosco Verticale (Vertical Forest) building is visi...

A demonstrator walks by a barricade in Bujumbura, Burundi, Wednesday April 29, 2015. Protesters were again on the streets Wednesday, angry over the Bu...

A demonstrator wears glasses with dollar signs in Bujumbura, Burundi, Wednesday April 29, 2015, as anti-government street demonstrations continue for...

Joe Belfiore, Microsoft Corporate Vice President of Operating Systems Group, demonstrates Continuum for phones at the Microsoft Build conference in Sa...

World War II era Soviet tanks T-34, front, and other military vehicles make their way to Red Square during a rehearsal for the Victory Day military pa...

Workers remove a large ball of trash from the lawn of the Texas Capitol, Wednesday, April 29, 2015, in Austin, Texas. The ball of trash was used as a...

Alize LeGrange, 18, wears a T-shirt she made in response to Baltimore Mayor Stephanie Rawlings-Blake's comments about "thugs" trying to tear down the...

A protestor wears a flag decorated with the name of Freddie Gray during a demonstration outside City Hall, Wednesday, April 29, 2015, in Baltimore. Hu...

A man is carried by police officers as arrests are made at Union Square, Wednesday, April 29, 2015, in New York. People gathered to protest the death...

The charioteer figure, Prosperity, who guides the golden horses on the Minnesota State Capitol building's Quadriga statue, is lifted back into its pos...

In this April 29, 2015 photo, Tom Wallace, the senior manager for Unit 2, leads a tour inside the Unit 2 cooling tower, which is under construction, a...

Outside a mall in Riyadh, Saudi Arabia, April 29, 2015. Confronted with an austere version of Islam and strict social codes that place sharp restricti...

This April 29, 2015 photo shows the former Showboat casino, foreground, and the Trump Taj Mahal casino, background, in Atlantic City, N.J. Stockton Un...

In this April 29, 2015, photo, steam rises from geothermal mud pots near the banks of the Salton Sea near Niland, Calif., evidence of the region's vas...

Kazakh President Nursultan Nazarbayev attends his swear-in ceremony in Astana on April 29, 2015. Nazarbayev on April 27 extended his grip on power in...

A Nepalese woman organises her belongings rescued from rubble at the heritage town of Bhaktapur on April 29, 2015, following a 7.8 magnitude earthquak...

Pope Francis smiles as he arrives to lead his open-air weekly audience in St. Peter's Square on April 29, 2015 at the Vatican. AFP PHOTO / VINCENZO P...

Pope Francis salutes as he arrives to lead his open-air weekly audience in St. Peter's square on April 29, 2015 at the Vatican. AFP PHOTO / VINCENZO...