nicholas kristof. always a pleasure to talk to you. >> my pleasure. thanks for having me. >>> coming up in our special report, john kerry's high-profile role in promoting military action against syria. he lost the whitea "crossfire" flashback. >> in 2003, "crossfire" host tucker carlson repeatedly promised that he'd eat his shoes if senator hillary clinton sold a million copies of her autobiography. well, she did, but he had no idea what was coming on this july day when we reminded him of all those rash promises. >> tucker, my friend, get ready to be munching on a little shoe leather coming up pretty soon, huh? >> actually, paul, i will, in fact, eat my shoes, because i am a man of my word. >> i'm going to be curious as to what sort of shoe he chooses, flip-flop or leather. >> well, today, simon action&shuster announced that senator clinton has passed the million books sales mark in just one month. kind of reminds me of the old prayer, dear, lord, make my words sweet and tender, for i may have to eat them. tucker, you're going to have to eat some shoe, my brother. >> you know, it wouldn't be the first time i'd have to eat my words. oh, my! >> ladies and gentlemen, senator hillary rodham clinton! >> h