Weapons experts identify missile development sites in North Korea

WASHINGTON — U.S. analysts said Monday they have located more than half of an estimated 20 secret North Korean missile development sites, highlighting the challenge the Trump administration faces in ensuring that North Korea complies with any eventual agreement to end its nuclear and missile programs.

The findings, which were released amid signs the administration’s negotiations with the North have stalled, draw on commercial satellite imagery and identify 13 secret facilities used to produce missiles and related technology.