Kim Jong Un’s silence over missile tests earlier this month raises possibility that Pyongyang is refining weapons for use by its ally Russia. Shweta Sharma reports

North Korea usually reports launches but its silence in the recent launches raises the possibility they involved a top-secret new missile.

Seoul, Tokyo, and Washington condemned two ballistic missile launches ahead of allied military drills, but Pyongyang’s failure to report either test has left analysts guessing at…