Even better than a flight data recorder, millitary aircraft are required to be protected from electironic eavesdroping called the tempest emanations project in the 50s a lab tech was typing on an electric typewriter and they discovered an osiloscope display changed with every key stuck they realized that they could spy by monitoring the electric wires etc. It has gone through many upgrades since and can even use radio waves similar to the giant radio telescopes of SETI used to listen for life in outer space to listen to conversations inside a building even if there is not a bug in the building by “hearing” the vibrations of the fabric you are wearing when it is struck by the sound waves. Despite the government claiming they can’t do this govt. aircraft and office building specs. require building defenses and sheilding against it.
Citizen Researcher Dr. Larry Kawa charges that “the evidence suggests that the meeting between former President Bill Clinton and current Attorney General Loretta Lynch may have been recorded under an NSA program, called the Tempest Emanations Program.”
According to FOX News, Government officials such as the Attorney General are required to fly using government planes.
The NSA and NATO program Tempest Emanations program which is part of the government’s Communications Security (COMMSEC) controls communications security of government officials including that of the Attorney General.
More about the tempest emmanations project
https://en.m.wikipedia.org/wiki/Tempest_(codename)
There was FOIA request for the recording from the plane
http://www.truthandaction.org/nsa-blocks-release-information-tarmac-meeting-clinton-lynch/2
Citizen researcher Larry Kawa is pressing the government to release the contents of a taping system that is required to have been installed on Lynch’s government airplane. Kawa points to the Tempest system, a NATO-certified system by which the NSA tracks and records sound that emanates within government structures.
General Dynamics installs the recorders in the planes,” Kawa told Big League Politics, referring to VoIP recorders that he said must be installed on airplanes like the government jet used by Lynch, where the conversation took place. “(Lynch) could not have un-installed them if she wanted to.”
Kawa’s Freedom of Information Act (FOIA) request to the NSA was denied, citing national security, but the NSA did not deny that the tape exists.
Wow that’s really interesting.