There is a story of a police speed camera catching a fast jet going around. The snopes debunking has some interesting technical details of why this is really u

There is a story of a police speed camera catching a fast jet going around. The snopes debunking has some interesting technical details of why this is really unlikely https://www.snopes.com/fact-check/police-radar-missile/ https://www.snopes.com/fact-check/police-radar-missile/ But of course people have built nuclear reactors at home, so they could probably assemble a sufficiently powerful radar too. Edit: didn't mean that people need to power homemade radars using homemade nuclear reactors! I'm sure that's not necessary :)