At Syria's border, after months of waiting, the weapons arrive

Many of the defectors bring with them evidence of the crimes of the units they had worked with. A large number who come through here are officers, who know they will be respectfully received by the Turkish army across the way and will likely avoid the refugee camps that dot the border areas and act as home to nearly 15,000 Syrians.

Before the officers leave they habitually offload videos from their mobiles, which are downloaded by a computer-savvy member of the FSA and soon uploaded to the opposition network of thousands of videos that have chronicled the horrors of the past 16 months.

One video dropped off last month depicted a scene of unimaginable horror. A man in military uniform stood above two bound men with a chainsaw. He taunted them about their imminent death and said their only God was Syrian president Bashar al-Assad. Then he put the chainsaw to work, decapitating one man in a series of strokes, his blood splattering the traumatised man next to him as he waited his fate.

"They are criminals, monsters," said one of the rebels in the room as the video was played. "How can anyone do that to another human being?"

http://www.guardian.co.uk/world/2012/jun/29/syria-turkey-border-arms-defectors?newsfeed=true