Originally Posted by Worcester

You have some right points but I think this is Political rather than Security

I base this premise on the following

1. No airliner has been brought down by a bomb in the cabin, while several have been through bombs in the hold
2. There is a very real threat from batteries in the hold where if they catch fire the fire cannot be dealt with
3. A terrorist capable of building a bomb invisible to x-ray machines is capable also of driving to an airport where electronics are allowed in the cabin
4. No other government thinks there is the intelligence to support such a move