By Brian Lonergan, Chronicles - While a public debate rages over how aggressively the federal government should enforce deportations, the Department of Justice recently took a quiet but consequential step toward restoring integrity to America’s immigration system... On May 8, federal prosecutors filed denaturalization actions in courts across the country against 12 naturalized U.S. citizens. The grounds for the actions could not be more serious: concealing material support for terrorist groups, committing war crimes, espionage, sexually abusing a minor, and other fraud committed during the naturalization process. ...