Condoleezza Rice is driving this return to diplomacy, and the deal with New Delhi reflects the extraordinary U.S. diplomatic activism that has characterized her brief time in office: a commitment to ease the humanitarian crisis in Darfur, where she has just spent two days; intense efforts to promote a successful Israeli withdrawal from Gaza; a systematic strategy to increase international support for Iraq; a renewed diplomatic presence in Asia through a series of bilateral visits to the region by the secretary and her senior colleagues; a resumption of the six-party talks on North Korea's nuclear weapons program; full support for...