Dec. 21, 2011: Petty Officer 2nd Class Marissa Gaeta, left, kisses her girlfriend of two years, Petty Officer 3rd Class Citlalic Snell at Joint Expeditionary Base Little Creek in Virginia Beach, Va. Gaeta's ship had returned from 80 days at sea. Their "first kiss" that day was a first of its kind for the Navy. Brian J. Clark/The Virginian-Pilot/AP hide caption
The kiss. That's Sgt. Brandon Morgan on the right. Dalan Wells on the left. Gay Marines on Facebook hide caption
The kiss. That's Sgt. Brandon Morgan on the right. Dalan Wells on the left. Gay Marines on Facebook hide caption
Former Pennsylvania Sen. Rick Santorum during Thursday night's Republican presidential debate in Orlando. Mark Wilson/Getty Images hide caption
President Obama during his news conference Wednesday. Evan Vucci/AP hide caption
Tuesday: Former U.S. Air Force Major Michael D. Almy (L) hugs House Speaker Nancy Pelosi, D-CA, after she signed legislation repealing "don't ask, don't tell." It's now on the president's desk, awaiting his signature today. Mark Wilson/Getty Images hide caption
Defense Secretary Robert Gates salutes as he arrives aboard the USS Abraham Lincoln. Win McNamee/Getty Images hide caption
A firefighter battles one of the blazes sparked by last night's explosion in San Bruno, Calif. Max Whittaker/Getty hide caption