NPT review ends in deadlock as Iran dispute exposes nuclear divisions

The third consecutive failure of a nuclear treaty review shows widening tensions over the world's nonproliferation regime.

The U.N.'s Izumi Nakamitsu, left, and Vietnam's U.N. Ambassador Do Hung Viet speak to reporters about the NPT Review Conference ending with no plan for disarmament. (U.N. Web TV)

A major United Nations conference reviewing the global nuclear non-proliferation treaty ended without agreement after weeks of negotiations exposed widening divisions over Iran,…