They dealt with the Iranian regime first-hand more than three decades ago, when it was founded in an act of war against the U.S., and several survivors of the hostage crisis say the idea of the U.S. negotiating with an unrepentant Tehran makes their blood boil. For 444 days, the 52 Americans were held prisoner in the U.S. Embassy by the student revolutionaries that would help usher in the hard-line Islamic theocracy that remains in place today. Many of the hostage takers and guards held key roles in the Iranian government then and continue in important positions today. “I think...