Air companies and crews insist that using cellphones can interfere with commercial airplane instrumentation. This is complete bullshit. We have talked about this in the past and we even gave you advice about how to avoid their stupidity. This video is the definitive roundup on why this is dumb, dumb, dumb. DUMB.
I wish I could project it directly into the retinas of every flight assistant and air company executive in the world. On loop. For two weeks. [Thanks Karl!]