When Elizabeth Holtzman of New York became the youngest woman in American history elected to Congress at age 31, she hadn’t spent much time thinking about Nazi war criminals. But when a whistleblower in 1973 brought to her attention the fact that such perpetrators were living in the United States with full knowledge of the federal government, she decided to use the power of her office to do something about it.

Elizabeth Holtzman, who is the subject of an IWitness activity, is among four Homeland Security advisory council members who resigned in protest of the U.S. government’s policy of separating children from their parents at the U.S.-Mexico border.