PORTLAND, Ore. .....The protest had many elements of the Occupy Portland movement, which galvanized protesters in the city and formed a network of people who still communicate via mass text message. As with Occupy, the vast majority of protesters preached peace, but a fringe group of people — some covering their faces with black bandannas — advocated violence and confrontations with police. And like Occupy, the original protest drew a disparate group of people together, not all of whom agreed with one another. Military veterans called for peace, a communist group called for the overthrow of capitalism, and a group...