US officials puzzled by lack of North Korean missile tests

US defense and intelligence officials are growing increasingly puzzled why Kim Jong Un has not tested a ballistic missile in nearly two months. And for now, as President Donald Trump travels through Asia, it does not appear another missile test is imminent.

Officials caution all of this could change at any time and Kim could resume aggressive weapons testing -- but that would also pose the question as to why he resumed.One of biggest worries for the US military is that the North Korean regime might live up to its threat of conducting an atmospheric nuclear test. Officials point out the regime has a track record of following through on its threats on weapons testing.At the moment US intelligence suggests North Korea's longstanding underground nuc...