Article Photos: Large amount of cash on crashed plane in Ecuador 19/35

  Flanked by Colombia's President Juan Manuel Santos, left, and Santos' wife, first lady Maria Clemencia Rodriguez, President Barack Obama waves upon his arrival for the opening ceremony of the sixth Summit of the Americas at the Convention Center in Cartagena, Colombia, Saturday April 14, 2012. The summit brings together presidents and prime ministers from Canada, the Caribbean, Latin America and the U.S. (AP Photo/Fernando Llano)