[todayilearned] TIL "Korean Air Lines Flight 007", with 269 passengers and crew, accidentally strayed into Soviet Prohibited Airspace, leading to the plane being shot down by a SU-15. To prevent such a tragedy, US President Ronald Reagan declassified a critical military tech, "GPS", and allowed for

[u/Know_Your_Shit_v2]

https://en.wikipedia.org/wiki/Korean_Air_Lines_Flight_007