The first four words in the above sentence are just about correct. Otherwise, this thread as a whole, reveals a lot of ignorance in people who should be able to be better informed.
Terrorism is a symptom right. How do you remove it ? You figure out the cause and then remove the cause. And before another ignorant hillbilly suggest that the cause of terrorism is terrorist organisations, the answer is wrong answer.
The most frequent cause of terrorism is hopelesness. For the last couple of thousands of years, most guerilla activity has been waged by a hopelessly outclassed side against a superior side.
Spartacus burned, raped and pillaged his way through the roman empire when there was no hope of victory left. The spanish waged a brutal guerilla war against napoleonic occupation forces a few centuries ago. The afghan mujahedin waged an equally atrocious "campaign of terror" against the soviet forces (funny, nobody complained about terrorists then) and finally, the palestinians, driven from their homes and farmland, living in refugee camps with no future has no means of striking back, except using everything at hand, including their own bodies as a weapon against all representatives of a hated occupation force.
The Nazis recruited people without hope, hamas recruits people without hope, a dozen south american guerillas recruit people without hope.
If somebody truly wanted to stop terror, they would offer the human resources that gets recruited into such organisations a hope for a future. If people can't see that, then the "war against terror" is already lost. It's called using the brain instead of more guns (using lots of guns in the first place accomplishing absolutely nothing for world peace).