Do we know what objects or weapons the terrorists used in 9/11?

Question

How come these weapons were not detected ?

And if they had just used objects found onboard or used their bare hands, upping the airport security checks which is happening now is not going to stop them, isn't it?

Answer 1

They DEFINITELY did not use their bare hands. If that were the case, the passengers would have subdued them. The terrorists stated they had bombs on board (not true, but no one knew that). They had box cutters to kill and they used their favourite weapon... FEAR.

Answer 2

they used razor box cutters.

We now have much more rigorous security checks at airports, and they put locked doors on airliner cockpits and armed sky marshals are randomly assigned to flights. All these things have been credited with stopping terrorist hijackings or airline bombings.

But, we still are very vulnerable because thes methods are far from infallable and because of the additional hatred against the US caused by our actions in Iraq and our inaction in Palestine.

Answer 3

the box cutters were of the plastic, with snap-off blade type.  difficult to detect.

there is no way that passengers are going to acccept a hi-jack anymore.  would you?    you do bring a couple sharp pencils on the plane with you?  recommend aiming for the neck or eye.  how about your belt?  i wear one that can be pulled tight and latched (one of those leather weave ones)  get that around a neck, and pull it down between a set of seats.  

the pilot is not going to open the door, so passenger rebellion is the only way to break the stalemate.

Answer 4

Yes, some were found on the streets below the Towers right after the first impact.  They had knives with blades that were not steel--not detectable with X-light.  

CS gas, too.

They didn't use any objects found onboard, and (as you know) didn't use their bare hands.

And immediately afterward there were restrictions on people from outside the company jumpseating in the cockpit.