Why is this a government issue unless terror/criminally related?
The cell grid is actually very fragile. Ingenious and hi-tech, but fragile. Would/will be very easy to interfere with or break by several means. FCC would be involved for a number of potential reasons, including signal interference by unauthorized transmitters. I am not sure what role they would play in the event it was system hackers, but certainly that would be criminal.
Is the FCC to blame?
“Why is this a government issue unless terror/criminally related?”
Government regulated airways.