PBS correspondent Yamiche Alcindor apparently does not believe that there are anarchists participating in the protests.  See link here on Foxnews.com.

At least for now (2-June-2020, 6:55 pm), I found it here.  The rebuttals are also in the Twitter link.

The Other McCain weblog quotes Arthur Koestler, “”One should either write ruthlessly what one believes to be the truth, or else shut up.”

Excellent advice for Ms. Alcindor.