Of course you can't kill an idea. Wait, what was the idea again?

The 21st century equivalent of setting a poop-filled bag on fire on someone's porch, or something along those lines. But without actually requiring anything so taxing as getting up from the computer, going outside, and running.

The only difference is that instead of people thinking that it is a harmless prank they will send in homeland security/swat team/etc with loaded weapons.

Although I would agree their politics and aims were pretty scattershot and unfocused - that's a little unfair don't you think?

Or, a bit more recently, Catharism was killed very successfully by the Catholic Church and a lot of soldiers:

http://en.wikipedia.org/wiki/Catharism

You can kill an idea.