If there was a way to turn a laptop into a bomb I am sure the terrorist would just jump on a local US aircraft.
If there was a way to turn a laptop into a bomb I am sure the terrorist would just jump on a local US aircraft.
The ban is because authorities believe security at those airports is inadequate to detect a bomb built into a laptop. This implies they believe security at other airports is able to detect such things. If the ban is being lifted for specific airlines, it's because those airlines have security sufficient to detect these laptop bombs (or at least the authorities believe they do).
It is not necessarily the case that every airline at a given airport has the exact same security. It's possible for terminals to be separated and security measures to be enhanced at only one terminal. It's possible for additional security screening to be done at the gate.
[1]: http://observer.com/2016/02/midair-hack-shows-the-dangers-of...
It could also be a leg-up to American carriers competing on those routes. Another commercial option is a tactic to require implementation of security practices that involve American-made equipment.
I'm sure there are many other possibilities that make more sense than the public explanation, which only seems to make sense if we assume the people protecting us are incredibly stupid. I don't think they are, so the public story is probably just a cover.
Perhaps, they wanted a more comprehensive laptop ban but were stopped by someone.