U.S. Department of State, Office to Monitor and Combat Trafficking in Persons
http://www.state.gov/g/tip

U.S. Department of Health and Human Services, Campaign to Rescue and Restore Victims of Human Trafficking
http://www.acf.hhs.gov/trafficking/index.html

U.S. Department of Justice
http://www.usdoj.gov/whatwedo/whatwedo_ctip.html
http://www.ovc.gov/help/tip.htm
http://www.usdoj.gov/criminal/ceos/trafficking.html