In 1998, the CIA subjected India to strict surveillance to ensure it was complying with its commitment not to test nuclear weapons. The agency used satellites, communications intercepts and agents to watch the nuclear facility at Pokhran in Rajasthan state. India could not detonate warheads, which would inevitably lead Pakistan to follow suit, without the United States knowing in advance. Or so the United States thought. Washington went into shock on May 11, 1998, when Indian Prime Minister Atal Bihari Vajpayee announced that his country had just detonated not one, but five nuclear warheads at Pokhran in a surprise to U.S. analysts.
If the CIA is watching India and Pakistan now, it will have to do better than it did in 1998. In 2019, with passions high over India’s abrogation of Kashmir’s legal, if fictitious, autonomy, the outcome would not be waking up to discover one side or the other had tested...