Czech Foreign Minister Karel Schwarzenberg (left) and U.S. Secretary of State Hillary Rodham Clinton arrive for a press conference in Prague on Monday, Dec. 3, 2012. (AP Photo/Petr David Josek)

Photo by: Petr David Josek

Czech Foreign Minister Karel Schwarzenberg (left) and U.S. Secretary of State Hillary Rodham Clinton arrive for a press conference in Prague on Monday, Dec. 3, 2012. (AP Photo/Petr David Josek)