In fact studies are going on in the mass freight system to certify cellular devices that transmit position for tracking purposes. No contamination with aircraft systems has been observed. It is what we do not understand that we fear the most for this reasion I say we completely understand the technology we posess. The FAA just has a ignorant position as they are a bunch of uneducated civil service employees as pertains to the matter who are drowning in burocracy.
The airlines have no motivation as they make money off of the SLF communications systems they installed.