[simonblack]

Radar displays will display whatever the underlying circuitry produces. Faulty circuitry will produce erroneous displays.

Faulty does not necessarily mean "broken", it could simply be that the software which is being run has many bugs and produces echoes on the display which are just not existent in reality.

As far as I can see it, if the UFOs are not secret new aircraft, then they are non-existent artifacts in the inadequate electronics.

[graderjs]

That's a possibility and a fair point, but only if these data were not independently confirmed by other sensors, like night vision footage, iPhones, FLIR targeting pod footage, and pilots. You can't say it's faulty sensors if you get the same signal across multiple unrelated systems.

I'm not saying you're saying this specifically, but some people do, and that's crazy, it's a conspiracy theory to invoke the idea that all sensors failed at the same time in the same way, include hallucinating humans, it's very much reaching for a crazy explanation just to deny evidence or preserve a belief system challenged by that evidence.