You can't defend. You can't prevent. The only thing you can do is detect and respond.

The administration is deliberately choosing a less secure technology without justification. If there were a good reason to choose that technology, then it might make sense. But there isn't.

There's not really any meat to it,

It's certainly feasible, but it's my guess it's not economic, ... My guess is it is cheaper for the airline to absorb this loss, which doesn't happen often, than to fix the problem.

We all think of the movie scenarios - the kinds of things that we would expect to see in a movie plot. Terrorists sneaking a bomb into the Super Bowl, for example. The problem is, terrorists don't care. They don't care whether it's a football game or an airport or a restaurant or a movie theater. It doesn't matter to them.

If you think technology can solve your security problems, then you don't understand the problems and you don't understand the technology.