IT could well be a millennial moment. Atal Behari Vajpayee, stepping gingerly off the bus to Lahore at Wagah, and Nawaz Sharif, pacing the red carpet perhaps a touch impatiently, embracing, as ceremonial guns boomed in salute. February 20, 1999, 4 pm. The image forever frozen in the evening light of the subcontinent's northern plains. The most unlikely men of peace-who'd just last year been letting nukes do all the talking-were trying to unravel 50 years of confrontation.