When Congress issued the Prison Rape Elimination Act of 2003, that should have put corrections officials on notice. The measure requires the Justice Department to study the endemic problem of sexual assault behind bars and develop a strategy for coping with it. But prison officials have continued to play down this problem... Speaking of prison officials, a witness said, "They seen what was happening but they pretended they didn't." In what may be the first case of its kind, Mr. Johnson sued prison officials and accused them of violating his rights under the Eighth Amendment, which prohibits cruel and unusual...