It is now a federal crime to bring a Galaxy Note 7 onto an airplane
theverge.com
theverge.com
Have laws that are as minimally restrictive as possible, and have punishments that are fair enough that you don't mind enforcing them every single time someone breaks the law. This is so simple, and yet, the people who draw up these rules never seem to get it.
And I wouldn't trust end-users. I was just in US customs today where they said not to use your phone, 3 people within my reach were talking on their phone.
Your idea would shift the disincentive not to fly with a Note 7 away from the passenger.
It's not really the fault of a person to know that what they though was a normal phone is now considered contraband because the manufacturer goofed epically. Consider also all of the tech-illiterate who may have received one as a gift or whatever, and they don't know / care what model it is. It's not really fair IMO to fine them. I guess this is why they're checking all phones now.
I'm not sure of the exact mechanisms employed by them, but they likely need to work with every telco on which their phone can connect and go through all active IMEIs and ESNs to identify any still-active GN7s, likely at great expense to Samsung. They should also probably then blacklist those so the devices become unable to connect to the carrier, so any people still using them will actually bring them in for disposal.
Did Samsung really screw the design, or did they blunder into a bad batch of batteries? How many times has this catastrophic failure actually happened? Is it anywhere near frequent enough to make something like this a proportionate response to the risk?