As the federal government cracks down on protests in Minnesota, U.S. Customs and Border Protection has told its officers they must undergo more crowd-control training that opens the door to using chemical munitions against demonstrators, according to a memo obtained by HuffPost. CBP, which is part of the Department of Homeland Security, is responsible for safeguarding the country’s borders and ports of entry, but has taken a leading role in the crackdown in Minneapolis. Under the plan, many