On Saturday, former Secretary of State Hillary Clinton again justified the 2011 U.S. policy of regime change in Libya, citing, at least in part, the fact that dictator Moammar Gadhafi had killed Americans. "We have to continue to do what is necessary when someone like Gadhafi, a despot with American blood on his hands, is overturned," Clinton said during the weekend's Democratic presidential debate in Manchester, New Hampshire.