passengers shippers. supply chain and delivery of needed medical supplies. the concern, those 5g ground stations could disrupt a radio ultimate or. which provides precise altitude readings when pilots land in port visibility. as 5g goes live wednesday the faa will prohibit pilots from using altimeter s at landing in more than 80 airports near 5g sites. including large airport hubs in dallas, new york, and chicago. today airlines ceos warned that the vast majority of traveling and shipping of the public will essentially be grounded, facing cancellations diversions or delays. the faa has issued in our worthiness directive, that would significantly impact our operations. cell phone industry insist that the technology has been proven to be safe in europe. it has already delayed rollout twice and says it will turn down the power at ground station it s near some airports. look, the wireless carriers