In the summer of 1987, just before my "television debut," a true friend instructed me in a congressional hearing, "Remember, the microphone is always on -- even when it's not!" It's a lesson I never have forgotten. Apparently, Barack Obama doesn't have any friends to give him similar advice, or he doesn't learn well. Either way, an open mic during this week's nuclear security summit in Seoul, South Korea, has revealed our president's extraordinary hubris and his penchant for dangerous diplomatic duplicity.
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