ON BEHALF OF VETERANS Navy Adm. Mike Mullen, chairman of the Joint Chiefs of Staff, and his wife Deborah tour the Columbia University campus in New York City, April 18, 2010. The couple has embarked on a "Conversation with the Country" tour, the first leg in a yearlong series of stops at America's universities discussing issues important to the military and how educational institutions can help veterans and their families. SHARE: Download: Full Size (0.07 MB) Credit: VIRIN: 351768-H-OGH67-554.jpg Photo Gallery