Holy shit.

This guy takes a couple of minutes of audio from a security camera anywhere in the US, with no clues from the video whatsoever, and finds the exact spot where it was recorded.

How?

By correlating the Doppler curve sounds from two almost inaudible planes passing by with public ADS-B flight data.

https://www.youtube.com/watch?v=UytYrhYLOKI (29 min)

I think this is the #OSINT video of the year.