Or they are spreading it. Maybe this is what the Hazmat warning to not approach them if they crash is all about.
If they would tell us what types of radiation the type of source material would be known. If the gamma ray count is high we are talking fissile plutonium that could be a nuke or just the makings of a dirty bomb.
Putting my tin foil hat on now, is this foreign bad guys or our domestic bad guys? Martial Law could be in the offing.
Exactly my thought. The drones aren’t looking for radioactive traces from missing nukes. They’re spreading radioactive marerial.