What does it take to make a friend an enemy? Pakistan – once seen as sympathetic to the Taliban – is reassessing its relationship with the neighboring regime after a series of terror attacks on its soil.

NPR’s Mary Louise Kelly talks with David McCloskey, whose new spy versus spy novel Moscow X is about a CIA officer scheming to recruit a Russian intelligence officer — and vice versa.

The United States has shot down an armed Turkish drone operating near its troops in Syria, the Pentagon said.