General Allen Under Investigation for E-Mails to Petraeus Friend

General Allen Under Investigation for E-Mails to Petraeus Friend

Brendan Hoffman/Bloomberg

Army General David Petraeus, the top U.S. commander in Afghanistan, left, and Lt. Gen. John R. Allen, deputy commander of the U.S. Central Command, listen as U.S. President Barack Obama announces a reshuffling of his national security team at the White House in Washington, D.C., U.S., on Thursday, April 28, 2011.