Kofi Annan
UN-Arab League envoy Kofi Annan looks on before a meeting at his office at the United Nations Offices in Geneva. Fabrice Coffrini /AFP/Getty Images hide caption
Saturday: In this picture provided by the Syrian opposition's Shaam News Network, people watch the mass burial of victims from Friday's violence in Houla. AFP/Getty Images hide caption
Two soldiers watch 134 tons of marijuana seized by the Mexican Army burn in the border town of Tijuana, Mexico, in October 2010. Francisco Vega/AFP/Getty Images hide caption