Now Playing: Shirtless Vladimir Putin takes dip in icy Russian lake for the Epiphany
Now Playing: Russian opposition leader arrested amid anti-Putin election protests
Now Playing: Putin says US Treasury list of Russian ‘oligarchs’ is an attack on Trump
Now Playing: A search is underway for a suspect who shot 3 police officers in Kansas City
Now Playing: A plane made an emergency landing in Germany while plunging through the sky rapidly
Now Playing: President Trump calls the European Union a ‘foe’ before meeting with Putin
Now Playing: Jonathan Karl on the unifying impact of sports
Now Playing: Plunging plane makes emergency landing in Germany
Now Playing: Serena Williams lost to Angelique Kerber in the Wimbledon final
Now Playing: The 12 boys rescued from a cave in Thailand speak out while recovering
Now Playing: Protests against President Trump continue in Scotland while he prepares to meet Putin
Now Playing: ISIS insurgents in Afghanistan prove resilient against U.S. Special Forces
Now Playing: 6-year-old girl heard crying on viral tape reunited with mother
Now Playing: Thai boys recovering and steadily improving at hospital
Now Playing: Protesters take to U.K. streets, objecting to Trump and his policies
Now Playing: Trump becomes the 12th US president to meet Queen Elizabeth
Now Playing: Anti-Trump protests overtake London
Now Playing: ‘Baby Trump’ balloon flies over London
Now Playing: Donald Trump and Theresa May’s history of mutual praise and careful criticism
Now Playing: Trump greeted with mass protests in London
Free America Network Articles