The FBI used illegal wiretaps, fake letters, and undercover agents to spark internal conflicts and violence within targeted groups.

The FBI did not just watch; they played dirty. Agents wrote fake letters to activists' spouses to break up marriages. They sent fake letters to leaders to make them think their closest friends were traitors. They even put undercover agents inside groups to push them into committing crimes. In some cases, these tricks caused violent fights between rival groups, which sometimes led to deaths. It was a sophisticated campaign of psychological warfare.