HANOVER, GERMANY – APRIL 08: Russian President Vladimir Putin and German Chancellor Angela Merkel (not pictured) speak to the media after touring the Hannover Messe 2013 industrial trade fair on April 8, 2013 in Hanover, Germany. Merkel and Putin toured the fair, which is the world’s largest industry trade fair and has partnered this year with Russia. (Photo by Sean Gallup/Getty Images)