It’s highly unusual for law enforcement in the U.S. to wear masks, and for good reason. Criticism over ICE’s aggressive handling of immigration enforcement operations is growing by the day. Over the weekend in Minnesota — the focal point of a recent federal operation to detain undocumented immigrants in the last month — a second Minneapolis resident, Alex Pretti, was fatally shot by federal agents . Many Immigration and Customs Enforcement agents, if not the majority, wear face coverings ―