Col. Charles Beckwith, founder of the Delta Force, tells a story about White House planning in April 1980 for the mission to rescue our 53 hostages in Tehran. Beckwith had visited the White House Situation Room to brief President Carter. In the meeting, according to one writer, "Charlie mentioned that his Delta shooters would 'take out' the hostage guards. "Deputy Secretary of State Warren Christopher looked over at Charlie, eyebrows raised. 'Take them out,' Colonel?" Beckwith replied: "Yes, Mister Deputy Secretary. We're going to double-tap 'em. Shoot 'em each in the head — twice." Christopher protested: "Couldn't you just shoot...