Demonstrators return to protest against racial inequality in front of federal buildings despite lingering tear gas fired by federal law enforcement officials in Portland, Oregon, U.S., July 19, 2020. Picture taken July 19, 2020. REUTERS/Caitlin Ochs
As a U.S. Navy veteran, Chris David said he thought he would be able to talk plainly with federal agents in Portland and ask them why they were using unmarked cars to snatch people off the street during recent protests in the Oregon city.