World leaders gathering for their annual meeting this week will find a new buzz: The United Nations is back in the global spotlight after securing a cease-fire in Lebanon, trying to revive the Middle East peace process and pressing Sudan to allow U.N. peacekeepers into conflict-wracked Darfur. Plenty of other hot-button issues are on the agenda as well, including Iran’s nuclear program, the presidential runoff in Congo, reuniting war-divided Ivory Coast and Cyprus, and deciding the future of Kosovo. Full Story