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I find the discussions on Metabunk.org helpful with news stories like this.

For example here is a clip that a Fox News host recorded. Presented as a drone, but is it not clearly just an airplane filmed flying directly overhead?

https://www.metabunk.org/threads/drones-over-new-jersey.1377...

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Yeah, that looks pretty damn normal. I mean, what kind of Nefarious Power would send out its Secret Drones with standard wingtip lights and headlights on?

Note that in this aviation context, those headlights are more to make the plane itself more visible to everyone else, not to give extra information to its pilot(s). It's hard to make lights bright-enough that they could illuminate something in time for an in-air plane to avoid it. (E.g. a magical flying sleigh.)

That sleigh does have a high visibility red light although the mounting is somewhat unorthodox.

I considered trying some napkin-math for how many calories Rudolph would need to burn running a luciferin reaction like a firefly, but immediately stumbled over the issue of many lumens the FAA would consider acceptable. (Assuming they could be convinced to overlook all the other issues of proper color and signaling etc.)

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