Oregon, a hotbed of extremism, seeks to curb paramilitaries

An armed takeover of a federal wildlife refuge. Over 100 straight days of racial justice protests that turned downtown Portland into a battleground. A violent breach of the state Capitol. Clashes between gun-toting right-wingers and leftist militants.

Over the past decade, Oregon experienced the sixth-highest number of extremist incidents in the nation, despite being 27th in population, according to an Oregon Secretary of State report. Now, the state Legislature is considering a bill that, experts say, would create the nation’s most comprehensive law against paramilitary activity.

It would provide citizens...