Terms like 'Code 300' or 'Angel' may be used by flight crews to signal a serious medical emergency ...

I honestly do not see what other method should be used. QR codes are pretty good to transfer information locally. I mean sure, you could ask the user to type it, but I do not think that is practical ...

Add Yahoo as a preferred source to see more of our stories on Google. A flight attendant addresses plane passengers. Flight attendants are highly trained to address all kinds of emergencies that may ...