Smuggled sketches offer glimpses into harsh Myanmar prison

In one drawing, dozens of men sit crammed into a single room, hunched with their knees together, every inch of space occupied. In another, they lie back to back on the floor, their faces straining with discomfort.

Fourteen sketches smuggled out of Myanmar's Insein Prison and interviews with eight former prisoners offer a rare glimpse inside the country's most notorious jail.

This is where thousands of political prisoners have been...