A migrant child looks out the window of a bus as protesters try to block a bus carrying migrant children out of a U.S. Customs and Border Protection Detention Center on June 23 in McAllen, Texas. (Spencer Platt/Getty Images)
People watch a television screen showing U.S. President Donald Trump, center, and North Korean leader Kim Jong Un, right, at a railway station in Seoul on Nov. 29, 2017. (Jung Yeon-Je/AFP/Getty Images)
South Korean President Moon Jae-in and North Korean leader Kim Jong Un in Panmunjom, South Korea, on April 27. (Korea Summit Press Pool/AFP/Getty Images)
A South Korean soldier walks past a television displaying images of U.S. President Donald Trump, left, and North Korean leader Kim Jong Un at a railway station in Seoul on March 9. (Jung Yeon-Je/AFP/Getty Images)
A Syrian man looks at a building fire following regime bombardment in Douma, one of the few remaining rebel-held pockets in Eastern Ghouta, on the outskirts of Damascus on March 23. (Hamza al-Ajweh/AFP/Getty Images)
China's President Xi Jinping delivers a speech at the opening session of the Chinese Communist Party's Congress at the Great Hall of the People in Beijing on Oct. 18. (Nicolas Asfouri/AFP/Getty Images)
The State Department seal on the podium before a photo opportunity from Secretary of State Rex Tillerson, June 9 in Washington, D.C. (Drew Angerer/Getty Images)