ASPEN FORUM Undersecretary of Defense for Intelligence Michael Vickers, center, participates in a panel on the U.S. counterterrorism strategy at the Aspen Security Forum in Aspen, Colo., July 24, 2014. ABC News' Brian Ross, left, moderated, and John Carlin, assistant attorney general for national security at the Justice Department also participated. SHARE: Download: Full Size (0.06 MB) Credit: VIRIN: 626246-J-YPI54-452.jpg Photo Gallery