When corrections officers do employ force, rarely is it in response to an actual riot, of which there are only about 12 per year in the United States, according to Bert Useem, co-author of States of Siege: U.S. Prison Riots 1971â€1986. The more immediate threat comes from individual assaults, especially those carried out with homemade weapons. David Locklear, the veteran marine who shot Maloney in J-Block, has seen blades fashioned from cigarette butts (all it takes
is repeated whacks on a concrete floor), explosives concocted from nondairy creamer, and ice picks molded from toilet paper ("Wet it, work it, wet it, work it, and you can make it deadly," he explains). "We have to constantly stay on top with superior tactics and technology," says Sims.