The four-week review conference of the Nuclear Non-Proliferation Treaty at U.N. headquarters in New York ended without adopting a final document, marking a third consecutive failure after 2015 and 2022. I went there during the final week.With wars ongoing in Ukraine and Iran, and with the New Strategic Arms Reduction Treaty known as New START -- the only remaining nuclear arms treaty between the United States and Russia -- having expired, the international environment has become more hostile and member states, especially nuclear-weapon states, clung to national interests. This has raised co…READ FULL ARTICLE