A group of American citizens filed a lawsuit against the U.S. Department of Treasury for providing tax exemptions for charitable contributions that they say supported the expansion of Israeli settlements. An attorney for the plaintiffs, Martin McMahon, and Shahar Azani from StandWithUs debate the legality of the suit. Then, Iain Levine from Human Rights Watch joins to discuss the organization's call for businesses to stop operating in Israeli settlements. Lastly, Ayman Mohyeldin speaks to Deborah Sigmund of Innocents At Risk to talk about how airline attendants are trained to spot human trafficking.Jan. 20, 2016