Hyungwon Kang/Reuters
The Department of Homeland Security has described a series of shootings targeting Pennsylvania police officers as a “terror attack” and used the incident to back President Trump’s calls for an immigration crackdown. Authorities say Ahmed Aminamin El-Mofty, a naturalized U.S. citizen originally from Egypt, fired at police officers at various locations in Harrisburg on Friday. He was killed in a subsequent shootout with police. In a statement following the shootings, Tyler Q. Houlton, a spokesman for the Department of Homeland Security, said El-Mofty’s alleged attacks and a separate terror-related money-laundering case “highlight the Trump administration's concerns with extended family chain migration.” Extended family chain migration—which allows family members of immigrants in the U.S. to obtain visas—“make it more difficult to keep dangerous people out of the United States and to protect every American,” Houlton said.