> Cheap GPS jammers fit in a cigarette lighter and are used by truckers who don't want their boss snooping on them, but they don't quite threaten aviation.

They absolutely do threaten air and maritime navigation, because those trucks drive in and near ports and airports.

https://insidegnss.com/fcc-fines-operator-of-gps-jammer-that...

https://ilwulocal94.org/news/2024/CSA%2001-24%20GPS%20Jammin...