I'm offended, therefore the government should shut you up!

Eugene Volokh writes:

religions and religious figures are proper subjects for debate and commentary, both rational verbal debate and commentary, and the subtle commentary that can be offered by art.

Volokh coins the term "censorship envy."

When speech hostile or insulting towards one religion or symbol is suppressed by government action (as has been urged by many in Europe and Canada with regard to the Muhammad cartoons), or by self-censorship in the face of threatened violence, what happens when other groups are similarly offended? Their sense of outrage — and of entitlement to similar suppressive power — is increased, because they are now outraged by the perceived unequal treatment as well as by the original offense.

Read more here.