And Germany doesn't have a very good track record when it comes to spying on it's own citizens despite having a substantial percentage of the population who had experience with the Stasi. But you're right that at least things seem to be getting better in Germany.
Censorship of Islamist propaganda is needed when we have 1500 terrorists citizen in Syria and Iraq.
Censorship doesn't work. It just drives the discourse underground and often enough makes it even more attractive. The only way for censorship to work is to take it to at least the same extremes as China and have a system of delation in place to denounce people guilty of forbidden speech.
I, for one, am not ready to sacrifice my freedom like this for an hypothetical increase in security.
It's at times like this that I am ashamed of being French but then I realize that it would be the same in any other country and I become ashamed at the irrationality of my fellow human beings.