In a major story with repercussions throughout the left and beyond, investigative journalist Seth Rosenfeld broke the bombshell story that Richard Aoki, the only Asian-American to have a leadership role in the Black Panther Party, was an FBI informant.
As can be imagined, this allegation has produced schisms on the hard left, where the Black Panther Party is still iconic. However, it also raises serious questions about government informants creating risky, dangerous, or illegal situations that the government then exploits.
More on Aoki at IVN.