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Nepalese veteran Sherpa guide Kami Rita, 49, is welcomed by his sister at the airport in Kathmandu, Nepal, Saturday, May 25, 2019. The Sherpa mountaineer extended his record for successful climbs of Mount Everest with his 24th ascent of the world's highest peak on Tuesday. (AP Photo/Niranjan Shrestha)

Faithful reach out to Pope Francis during an audience with participants of a pilgrimage of the Italian-Albanian diocese of Lungro, in the Pope Paul VI hall, at the Vatican, Saturday, May 25, 2019. (AP Photo/Andrew Medichini)

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Britain's Prime Minister Theresa May makes a statement outside at 10 Downing Street in London, Friday May 24, 2019. Theresa May says she'll quit as UK Conservative leader on June 7, sparking contest for Britain's next prime minister. (Yui Mok/PA via AP)

FILE - In this Feb. 28, 2019 file photo, President Donald Trump and North Korean leader Kim Jong Un take a walk after their first meeting at the Sofitel Legend Metropole Hanoi hotel, in Hanoi. North Korea says nuclear negotiations with the United States will never resume unless Washington changes its negotiating tactics. (AP Photo/Evan Vucci, File)

Two same-sex couples seal their legal marriage with a kiss at the registration office in Xingyi District in Taipei, Taiwan, Friday, May 24, 2019. Hundreds of same-sex couples in Taiwan are rushing to the household registration office on the first day that a landmark decision to legalize same-sex marriage has taken effect. (AP Photo/Johnson Lai)

Commuters wait to get on a train at a station Wednesday, May 22, 2019, in Tokyo. A police-developed smartphone app with anti-sex crime alarms has won massive subscriptions as Japanese women try to arm themselves against gropers on packed rush-hour trains. (AP Photo/Eugene Hoshiko)

FILE - In this Saturday, May 18, 2019 file photo, Democratic presidential candidate, former Vice President Joe Biden speaks during a campaign rally at Eakins Oval in Philadelphia. North Korea on Wednesday, May 22, 2019, labeled Biden a "fool of low IQ" and an "imbecile bereft of elementary quality as a human being" after the Democratic presidential hopeful during a recent speech called North Korean leader Kim Jong Un a tyrant. (AP Photo/Matt Rourke, File)

A rescue worker, top in red, hangs from the Eiffel Tower while a climber is seen below him between two iron columns Monday, May 20, 2019 in Paris. The Eiffel Tower has been closed to visitors after a person has tried to scale it. (AP Photo/Michel Euler)

FILE - In this Thursday, April 4, 2019 file photo, Arnold Schwarzenegger, a cast member in the upcoming film "Terminator: Dark Fate," discusses the film during the Paramount Pictures presentation at CinemaCon 2019, the official convention of the National Association of Theatre Owners (NATO) at Caesars Palace, in Las Vegas. New video on Saturday, May 18, 2019 shows actor Arnold Schwarzenegger being assaulted during a public appearance in South Africa. It shows the 71-year-old standing and filming children at a sporting event in Johannesburg when a man makes a flying kick into his back. (Photo by Chris Pizzello/Invision/AP, File)