Gen. Michael Hayden, former Director of the National Security Agency, was called out on Friday by audience members, after he called himself a “libertarian” at the 2015 Conservative Political Action Conference (CPAC).

Hayden attended the conference for a debate with Judge Andrew Napolitano, the Senior Judicial Analyst for Fox News. Hayden’s comments followed comments by Napolitano saying that the audience should be “outraged” by the NSA’s massive surveillance program.

In reply, Hayden said, “If NSA were even capable of doing what the judge has just outlined for you, we wouldn’t be having a debate here today. There would be nothing to argue about.”

Hayden continued, “Let’s talk about reality. Let’s talk about facts. The judge is an unrelenting libertarian.”

Hayden’s comment about Napolitano was met with applause and cheers from the crowd.

“So am I,” Hayden said. “I’m an unrelenting libertarian who’s also responsible for four decades of his life for another important part of that document, the part that says ‘provide for the common defense.’”

The tone of the audience quickly changed, following Hayden’s second comment, and members booed, and shouted out,”No, you’re not!“