The Review Conference of the Nuclear Nonproliferation Treaty gets underway amid new concerns about Iran and North Korea and disputes between nuclear haves and have-nots. Fifteen countries will play a…

The countries outside of the Nuclear Nonproliferation Treaty--North Korea, Pakistan, India, and Israel--present a significant challenge for U.S. diplomacy and efforts to restrain the spread of nuclea…

Interest in nuclear power is increasing, but securing adequate uranium supplies for nuclear fuel faces challenges ranging from a flagging mining sector to fears of nuclear weapons proliferation.

Leaders attending the Group of 20 summit in Pittsburgh will seek to forge agreements to buoy a global economic recovery and repair financial imbalances that contributed to the recession.

The United States has pursued missile defense technologies for six decades, with mixed results. Changes under the Obama administration, including adjustments to planned defenses in Europe, could port…