Steve Greenberg: There is an alarming situation going on in Portland, Oregon, with unidentified police (federal agents sent by Donald Trump and his Attorney General henchman William Barr) snatching and detaining generally peaceful protesters, shoving them into unmarked rental vehicles. This is part of Trump's show of "law and order" that he hopes will energize his political base for his attempt at reelection. This reeks of secret police acting on orders of authoritarian, dictatorial figures, which Trump hopes to become.