Post 9/11 we've had a number of Anthrax attacks.
We've had one kid planting pipe bombs in mailboxes as he drove around the heartland in a smiley-face pattern.
We've had two suspicious jet crashes.
We've had two snipers in the D.C. area. FYI: those Islamic snipers insisted that a message be read on the air by the DC police, said message saying caught "Like A Duck In a Noose" (L,A,D,Ia,N = Ladin=Bin Ladin).
We've had a tiny blip increase in the number and frequency of train derailments.
We've had a series of cruise ships hit with a bio-agent.
We've had at least two suicide pilots fly small aircraft into bank buildings in Florida (Orlando and Tampa, if I remember correctly). FYI: both pilots wrote suicide notes naming Bin Ladin as their inspiration.
They've hit a French oil tanker with a suicide raft.
They've fired a couple of missiles at an Israeli passenger aircraft (and suicide-bombed a hotel in Africa).
They've killed scores of Australians in a nightclub bombing in Bali. FYI: This was linked directly to Bin Ladin.
We've stopped one Islamic suicide bomber from blowing up one of our jets (AKA Richard Reid) with C4 shaped into the sole of his shoe (i.e. the shoe-bomber).
We've caught one Muslim bomber trying to set off a radioactive conventional bomb (AKA the "dirty bomber").
It's not that they haven't tried more attacks, it's just that they really don't have the capacity to inflict much widespread harm (fear, sure, but real damage, no).
Now, this time around, pay attention to that last point. In fact, I'll repeat it for you since you seemed to miss it above: It's not that they haven't tried more attacks, it's just that they really don't have the capacity to inflict much widespread harm (fear, sure, but real damage, no).