For over 20 years, Robert Baer was a CIA case officer — or, more accurately, an assassin. In his new book, “The Perfect Kill,” he recounts some of his adventures (including going after Saddam Hussein in 1995) and offers tips for other assassins on how to do the job better.

When he joined me on KTRS, I asked him why he thinks in-person assassination is better than killing via drone, whether he ever thought twice about taking out a target once the order was given, and whether he’s worried about retribution from groups like Hezbollah, whose leaders he shot. I also asked him if any movies have portrayed his old job correctly (his previous book, “See No Evil,” was the basis for the movie George Clooney won an Oscar for, “Syriana”) and he explained why a good assassin doesn’t kill everyone in the room.

Listen to our conversation here.