I'm personally sickened by anyone who would censor for reasons like these.
The thing is, terrorists have never been a true threat. Only to very small groups compared to the vast numbers we have. Don't forget that the most successful terrorist act ever launched against the United States involved box cutters.
The only way terrorists even hope to have power is in their name: to scare people into taking backwards actions out of fear.
South Park made a point of how ludicrous the extremist Muslim populace was in it's determination to force the world at large to adhere to THEIR religion's laws. There's a scene in episode 200-201 where Jesus suddenly starts snorting coke. No Christian had a problem with this, or at least not to the point where they couldn't take a joke or have some thick skin. But oh, even MENTION their precious prophet (a prophet, mind you, which is still merely a man) and there are death threats and flag-burning.
And the reason for that is extremism and theocratic dictatorships. Under these nations, the laws in their Quran are the laws of the land, and reinforced under penalty of death. To BLASPHEME is to lose citizenship and even face execution. Under this environment, they are taught that their way of life is the only way of life, and that anyone who disobeys the "will of Allah" is an infidel, who's head will be repeatedly split open by an angel's hammer and stung over and over again by an incredibly venomous scorpion in the grave.
Point being, you can't blame or change these people until their environment allows for the slightest semblance of free-thought, but it also proves why theocracies don't work, and why separation of church and state is essential in modern government. And why making exceptions to freedom of speech, expression and religion for any reason is non-negotiable. If we allows fears of their reprisal to scare us into surrendering ANY of our freedoms, then we have allowed terrorism to do exactly what it has intended.
The fact is, no amount of security or safety is worth ANY of our freedoms being infringed upon. We must be uncompromising, we must stand firm by what we believe. For the cowardice of Comedy Central, I feel "Draw Muhammad Day" was an ideal statement to the theocratic Muslim world. We told them, "nobody is immune to satire or criticism; DEAL with it, better yourselves, or don't cry when we exercise out rights".
I think it was another man who seems to despise Jews just as much as the Muslims who once held aloft a sword and said "They may take our lives, but they'll never take OUR FREEDOM!"
I don't like that guy much personally, but there are few truths truer than that line.