In Libya, rebels have consolidated their control over the main city, Tripoli. Reports of human rights abuses are surfacing, with reports of apparent retaliatory murders. Reporters Sunday were taken to an apparent massacre site near a military camp held by supporters of Moammar Gadhafi. Meanwhile, a Gadhafi spokesman reportedly offered to negotiate with insurgents. Guest host John Ydstie discusses the latest news from Libya with NPR's Jason Beaubien.