Mr. Hennigan writes about national security, foreign policy and conflict for Times Opinion. The last nuclear arms control pact between the United States and Russia is set to end not with a bang, but ...

We need some good news now, and here’s some out of left field: An important new study suggests that there’s a highly effective way to overcome one of the most intractable problems in 21st-century ...

Finally back in print after a 25-year wait! Save the world–and the whales!–in this iconic interactive book where YOU decide what happens next. Packed with 27 possible endings! The Cold War is at its ...