World leaders are gathering for the high-level week of the 81st UN General Assembly as crises in the Gulf, Gaza and Sudan compete for diplomatic attention. The race to choose the next secretary-general adds to the pressures on an organization that one longtime UN watcher described as stuck in “an open-ended crisis.” The assembly’s session has already opened, but the leaders’ general debate begins on Tuesday, with speeches scheduled through Sept. 26 and again on Sept. 28. Inside UN headquarters,
