Biden’s insistence that his administration will tolerate no political violence deserves further exploration in a different context, given a statement released last week by his Director of National Intelligence, Avril Haines. “In recent weeks,” it read, “Iranian government actors have sought to opportunistically take advantage of ongoing protests regarding the war in Gaza, using a playbook we’ve seen other actors use over the years. We have observed actors tied to Iran’s government posing as activists online, seeking to encourage protests, and even providing financial support to protesters.”

A lone, disgruntled shooter is one thing; an orchestrated, nationwide campaign of unrest, which was partly paid for and organized by another nation and which has sometimes devolved to violence, is another. And it hardly takes a professional spy to realize what must be done when an enemy country is discovered to have agitated for uprisings on America’s campuses and in our streets: arrests, deportations, sanctions, and other defensive measures must follow.