At a military base that now doubles as a detention center in Israel’s Negev desert, an Israeli working at the facility snapped two photographs of a scene that he says continues to haunt him.

Rows of men in gray tracksuits are seen sitting on paper-thin mattresses, ringfenced by barbed wire. All appear blindfolded, their heads hanging heavy under the glare of floodlights.

A putrid stench filled the air and the room hummed with the men’s murmurs, the Israeli who was at the facility told CNN. Forbidden from speaking to each other, the detainees mumbled to themselves.

“We were told they were not allowed to move. They should sit upright. They’re not allowed to talk. Not allowed to peek under their blindfold.”

Guards were instructed “to scream uskot” –** shut up in Arabic – **and told to “pick people out that were problematic and punish them,” the sour