There was a shooting at LA just weeks ago. Lots of less than spectacular events have occurred on soft targets over the past 10 years. Each of those may have easily converted in to a more spectacular attack.
The marathon bombers were targeting the marathon for the message. They may have choosen to use an airliner to make that message had it not been for TSA. We don't know. There just isn't quality enough data on either side to remove airport security.
You mean Paul Anthony Ciancia who was pissed off about all the excessive security and deliberately targeted TSA agents hoping to commit suicide-by-cop?
Lots of less than spectacular events have occurred on soft targets over the past 10 years. Each of those may have easily converted in to a more spectacular attack.
Citing all attacks anywhere as justification for the TSA is a recipe for the unlimited ratcheting up of security. It is an enormous leap in logic to assume somebody with a semi-auto rifle or a crock-pot bomb is capable of getting them past pre-911 airport security and also doing something effective with it once they have. An attack on an airplane is simply too challenging for the vast majority of people to execute.
The marathon bombers were targeting the marathon for the message. They may have choosen to use an airliner to make that message had it not been for TSA. We don't know. There just isn't quality enough data on either side to remove airport security.