No proof exists that locked flight deck doors will save lives, yet we are legally required to use them.
No proof exists that smoking in the vicinity of an (AVTUR fuelled) aircraft is in any way hazardous, yet it is strictly banned.
Sometimes there is no conclusive evidence to justify things, sometimes there is...This is one case that is quite clear, thank you.
There is ample proof that allowing languages other than English on the RT is a real threat to life (and bodies to prove it too, but sadly not a big enough pile of them, so far...), yet it is allowed, and in some places, notably the site of one of those bodies, fanatically supported.
There is no evidence whatever that aircraft are in any way designed to be immune from on-board electronic interference - A380 possibly excepted. (Statements like
are all heavily shielded.
is factual bunkum. Even it it were true on a modern Airbus (which it isn't) what about a 737-300 or a MD83 - designed before cellphones existed? Nonsense!
Come on, people, open your ears to what your mouths are saying!!!
And,
there is
ample evidence that we just don't understand the complexities of electromagnetic propagation patterns from randomly placed transmitters inside complex metallic structures.
Its a complete no-brainer, isn't it? The answer can only be NO NO NO.