I’ve been peripherally aware of Brandon Darby over the last three years as a liberal activist who was scathingly critical of the Bush Administration and its policies. I disagree with him on many of those points. However, I applaud him for having the courage to act as an FBI informant in cases involving planned acts of domestic terrorism at the 2008 GOP convention. Indeed, any American with any sort of functioning moral compass should do the same.

Which is why the response of liberal activists to Darby’s acknowledgment of his role in preventing terrorist acts by a pair of terrorist-wannabes is quite telling.

When The St. Paul Pioneer Press published an article in October that cited an unidentified source who named Mr. Darby as an informant in the case against Mr. Crowder and Mr. McKay, a co-founder of Common Ground, Scott Crow, defended Mr. Darby publicly and warned against “rumors, conjecture and innuendo.”

“I put it all on the line to defend him when accusations first came out,” Mr. Crow said. “Brandon Darby is somebody I had entrusted with my life in New Orleans, and now I feel endangered by him.”

Endangered? By daring to assist law enforcement in preventing acts of political violence in the streets of America? Exactly where do your loyalties (and those of your fellow “activists”) lie, Mr. Crow?