Executioners Anonymous

In keeping with the medieval nature of the death penalty, the executioners in American prisons still remain hooded.

Four people who have volunteered to administer lethal injections to death-row inmates at the Washington State Penitentiary in Walla Walla quit their positions this week, apparently worried that their identities could become public as a result of an ongoing court case to decide whether lethal injection constitutes cruel and unusual punishment.

What--aren't they proud of what they do? And what sort of psychological issues does one have to have to volunteer for such work?