The Trafficking Victims Protection Act was signed by Bill Clinton in the final days of his presidency. NGO's were critical in the account and the phone hotline 888-373-7888 was owned by Covenant House in 2006 when the author below assessed the TVPA. I haven't had a chance to read but wanted to put this out there.
https://www.stu.edu/Portals/Law/docs/human-rights/ihrlr/volumes/1/99-131-TerryCoonan-TheTraffickingVictimsProtectionActAWorkinProgress.pdf