The Ship Model Forum

Basically, Carrier Strike Group 4 Is Jamming GPS Across U.S. Southeast Coast
February 8, 2019 David Cenciotti Aviation Safety / Air Crashes 0
“AOPA estimates that more than 2,000 airports—home bases to more than 28,600 aircraft—are located within the area’s lowest airspace contour.”
GPS has become increasingly important to our lives. Not only do Waze, Uber, and many other applications heavily rely on global positioning system. Our cellular networks rely on GPS clocks, banking systems, financial markets, and power grids all depend on GPS for precise time synchronization. In the finance sector, GPS-derived timing allows for ATM, credit cards transactions to be timestamped. Computer network synchronization, digital TV and radio, as well as IoT (Internet of Things) applications also rely on GPS-clock and geo-location services.
In an operational environment jamming GPS signals represents both a threat and an important capability. In addition to serving an important purpose in navigation on land, sea and in the air, GPS also provides targeting capability for precision weapons along with many other tactical and strategic purposes.
(...SNIPPED)

It is real nice to post something where you don't cite the source or any proof it has happened. But feel free to post this sort of stuff if it makes you feel good.

There's a link embedded in the first word of his post that takes you to the article, which cites an FAA notice.