how long are box cutter blades?

I personally think there is virtually nothing that can be done that will actually prevent another similar action.

It is just too easy to infiltrate the airports to sneak just about anything past. No serious terrorist is going to try and get past security again.

They will just get someone hired who can waltz right past. Or get a guy hired as a TSA screener. He could let a whole batch of them past.

I would not be at all surprised if AQ already has their moles in place.