Inside the DHS task force scouring foreign students' social media

The U.S. Immigration and Customs Enforcement (ICE) seal hangs on a wall before a speech by U.S. Vice President Mike Pence, not pictured, at the agency headquarters in Washington, D.C., U.S., on Friday, July 6, 2018. The U.S. will return immigrant children under five who were separated from their parents after crossing the Mexican border by July 10 to comply with a court order, the Health and Human Services Secretary said Thursday.