Editor’s Note: Each week we cross-post an excerpt from Katrina vanden Heuvel’s column at the WashingtonPost.com. Read the full text of Katrina’s column here.

Pepper spray can’t be washed off with water. The intense burning it causes—the stinging, the redness, the swelling, the coughing and gagging and gasping—will only subside with time, usually several hours. It can cause tissue damage and respiratory attacks. A study of its most commonly prescribed remedies found that none of them really work. It has been prohibited in war by the Chemical Weapons Convention, so our enemies don’t have to experience it on the battlefield. If only our citizens were so lucky.

Over the past several weeks police have been using pepper spray with alarming frequency in the United States against peaceful protesters. The injured include an 84-year-old woman, a pregnant woman, a priest and an Iraq war veteran. Over the weekend, we had to add to that list a group of college students, gathered nonviolently on the campus of the University of California at Davis.

For refusing to leave an occupy encampment they had set up on campus, more than a dozen students received a point-blank hosing of military-grade pepper spray by a campus police officer dressed, inexplicably, in riot gear. Then they received another one. And another. According to reports, some were punished for trying to protect their faces by having pepper spray forced down their throats. One student was reported to have been coughing up blood forty-five minutes after the occurrence. Several were taken to the hospital. In the immediate aftermath of the incident, the chancellor of the university defended the actions of the police. She should resign immediately.

James Fallows wrote of this act of police brutality, “Think how we’d react if we saw it coming from some riot-control unit in China, or in Syria.” We know how we’d react—how we have before: with a combination of disgust and outrage on behalf of those who are viciously victimized abroad, and with a deep sense of relief knowing that the United States is not the kind of place where such things unfold. In that sense, the cause of the brutality is the same as that which has driven so many thousands to occupy parks and squares and campuses: a political system that has abandoned its commitment to the ideals it is meant to uphold.

Editor’s Note: Read the full text of Katrina’s column here.