The goal is to pass the Human Trafficking Prioritization Act, which would promote the anti-trafficking office at the State Department to the level of a Bureau, giving it more clout and giving the issue of modern slavery the same status as other U.S. foreign policy concerns.
Follow the instructions provided at this link and call your U.S. Representative and Senators, urging them to co-sponsor the Act. (The U.S. Capitol switchboard will direct you to them when you tell them your zip code.)
If you are not familiar with International Justice Mission, it is a Christian human rights organization. Here is the description from their website (www.ijm.org):
"International Justice Mission is a human rights agency that brings rescue to victims of slavery, sexual exploitation and other forms of violent oppression. IJM lawyers, investigators and aftercare professionals work with local officials to secure immediate victim rescue and aftercare, to prosecute perpetrators and to ensure that public justice systems - police, courts and laws - effectively protect the poor.
IJM's justice professionals work in their communities in 16 field offices in Asia, Africa and Latin America to secure tangible and sustainable protection of national laws through local court systems."