Police in Seattle used flashbang grenades and pepper spray Saturday against protesters who set fire to construction trailers outside a youth jail, amid a wave of public anger over President Donald Trump’s planned “surge” of federal agents into major cities. >"The sounds of repeated small detonations rang out in the streets of the city in Washington state, and smoke rose from an area where demonstrators had set fire to trailers by a construction site for the youth detention facility, an AFP reporter observed."