The broad pattern is simple. The white driveway gates open and federal officers in uniform head down the building’s driveway and into the street, then push protesters back to allow cars to enter and ...

PORTLAND, Ore. — Explosions echoed between buildings in Portland's South Waterfront neighborhood. Sudden bursts of light cut through the crowd, and clouds of smoke filled the street. On Jan. 31, as ...

A British psychology professor credited with helping European authorities deter violent mobs at soccer matches is now advising Portland police on crowd control, including at protests outside the U.S.