WC-135 Constant Phoenix

A secret military nuke sniffer plane was spotted over Kansas City, Missouri Friday, but it's probably fine.

Depending on how cloudy it is where you happen to be, there's a chance you might be able to spot one of the most secret US military planes over northeast Missouri.

Timing and context are everything when you're looking at situations like what just happened over Missouri. Not long after new Russian threats, a nuclear detection plane was spotted flying over the entire state of Missouri twice.