1.   Rudakov made an ice rink of the floor of his punishment cell.

2.   He engaged in prison hunger strikes, for example, and spent weeks in punishment cells for other infractions.

3.   Sharansky accepted liberty only after his captors returned the Bible that sustained him in years of punishment cells and hunger strikes.

4.   The interrogator punched him in the face and threw him into a punishment cell.

5.   Those who did not work hard enough were locked in a coffin-sized punishment cell, pitch dark, on a starvation diet.

6.   The grim, run-down centers resemble little prisons, complete with punishment cells.