BEIRUT - A Syrian army helicopter dropped two barrel bombs on a displaced persons camp in the northern province of Idlib, camp residents said on Wednesday, and video footage appeared to show charred and dismembered bodies.Footage posted on YouTube showed corpses of women, children and burning tents while people scrambled to save the wounded. "It's a massacre of refugees," a voice off camera said."Let the whole world see this, they are displaced people. Look at them, they are civilians, displaced civilians. They fled the bombardment," the man's voice said.A man in another video of the Abedin camp, which houses people who had escaped fighting in neighboring Hama province, said as many as 75 people had died.