The full dimensions of the problem of human trafficking are difficult to measure. We do know, however, that human trafficking is a major source of profit for organized crime syndicates, along with trafficking in drugs and guns. The scope of the problem in the United States is serious: Congress estimates that approximately 50,000 women and children are trafficked into the United States annually.This is a Guide for non-profit organizations involved in combating human trafficking crimes as well as providing relief to its victims. (Description from Source)