Since the fall of Moammar Gadhafi, Libya has descended into chaos — with two rival governments vying for control. Now a faction of the Islamic State has moved into the vacuum of power. Would another international intervention make things better or worse?
Also, a graveyard of animals the size of gorillas have been uncovered in a cave off the shore of Madagascar. It's a rare look at ancient giants — extinct since the arrival of human beings.
Photo: Egyptian Christians held captive by the Islamic State (IS) kneel in front of armed men along a beach near Tripoli. They were forced onto their knees, then beheaded. February 15, 2015.(Social media via Reuters TV)