> If cell phones posed a danger to flight safety, ... the demand to have them be switched off or put on airplane mode would've been stringently controlled. It'

> If cell phones posed a danger to flight safety, ... the demand to have them be switched off or put on airplane mode would've been stringently controlled. It's mostly an FCC issue where a mobile device flying above would try to connect to many base stations. If the airlines really care, they can tell passengers that leaving the phone radio on will drain their batteries hard as the devices will be desperately trying to regain connectivity, that would get many people to turn these things off/onto airplane mode.