Militaristic boot camps became very popular in the U.S. in the early 1990's as an alternative to traditional prisons and probation. Less recidivism and less cost were the shibboleths of correctional boot camps. The boot camps are believed to reduce the number of repeat offenders and to lower operational costs. The rehabilitation programs and aftercare activities are thought to bring ongoing changes in inmates' behaviors. Therefore, boot camps are strongly supported by politicians and the public. Tax dollars are spent to operate the boot camps. However, despite the fact that only two decades have passed since the existence of juvenile boot camps, numerous studies have declared that juvenile boot camp prisons are ineffective in reducing future offenses of inmates, operational costs, and in continually changing the behaviors of young offenders.