(snip) I remember visiting the pre-Giuliani Manhattan. It was like one long episode of "Kojak." The professions then open to young New Yorkers were dealer, hood, hooker, junkie, pimp -- or bent cop. Yet by the time I moved to the city, not long after 9/11, the analysts outnumbered the psychos. "Kojak" had been replaced by "Seinfeld." A large share of the credit for that transformation belongs to Giuliani. His presidential bid is based on the notion that what worked for the world's capital city can work for the world. America, Giuliani says, must remain "on offense" to win the...