We strongly urge Rep. Keith Ellison [D-MN], Sen. Patrick Leahy [D-VT], and Rep. Raúl Grijalva [D-AZ3] to take immediate steps toward introducing legislation to ban or suspend the export of these harmful agents to Turkey. Why?  Turkish police have used and continue to use these substances against peacefully assembled citizens who pose no threat to public order. They are used in massive…