Officials said that Flight 93's flight data recorder (FDR) and cockpit voice recorder (CVR) were recovered at Shanksville.

They said the FDR was recovered 15ft underground at 4:45 pm on 9/13...

...and the CVR was found 25ft underground at 8:25 pm on 9/14.

“The black boxes were 15ft and 25ft into the ground.”

If Flight 93 didn't crash in Shanksville, then these black boxes must have been planted.