The protests are great television. That's important.

The woman in the video wears a police vest and a gas mask. Is she a reporter or a soldier? At first, it's hard to tell. But then we see the microphone and notebook she clasps in her hands. In the distance, billows of gas pour down a side street. She flinches anxiously when a firework sends off a trail of red sparks in the field behind her. Moments later, a flash-bang grenade bursts against her side. She screams. I stumbled on to this footage, shot by MSNBC, on Twitter, where it was shared widely...