Colombia Americas Summit Secret Service

April 14, 2012 - 4:36 PM
U.S. secret service agents walk around the Convention Center in Cartagena, Colombia, prior to the opening ceremony of the 6th Summit of the Americas at the Convention Center in Cartagena, Colombia, Saturday, April 14, 2012. Last Thursday, a dozen secret service agents sent to provide security for U.S. President Barack Obama, were relieved from duty and replaced with other agency personnel after an incident of alleged misconduct. (AP Photo/Fernando Llano)