There's nothing new for me to add to this argument.  What I really need to emphasize is I never made a prophet Muhammad cartoon to send a message to people of radical beliefs in any religion.  I don't expect them to change, I don't expect them to grow, I don't expect them to learn.  I expect nothing of them.  
I make cartoons for people that I care about.  When the first Draw A Cartoon of the Prophet Mohammed Day came around there were people, fellow artists, who were sitting on the fence thinking, "Maybe we do have an obligation to cater to the sensibilities of other people.  Maybe we should censor ourselves because what we draw might get us or somebody else killed."  I NEEDED TO KILL THAT NOTION.  I participated to clearly show that artists/people have no obligation whatsoever to cater to the sensibilities of other people.  You as a person, have no obligation whatsoever to respect or regard anything as sacred and obey the rules of a religion, especially one you don't pray to or believe in yourself.  

And when people said there was no harm in respecting a religion not of your own, the ones they're catering to often make no distinction between respecting something and obeying it unconditionally.  If you're going to show any extreme religious belief any respect you're on a road that has no turns until you have bent your knee, surrendered yourself, and openly declared you now follow that religion.  And when you do, the chances of you being butchered for being a heretic actually get worse instead of better.  

As far as the physical threat is concerned, I believe we have successfully destroyed the fear that creating cartoons that may offend any radicals will cause death and destruction in places we care about.  I do NOT give a rat's ass about people rioting to death over cartoons in Pakistan, Afghanistan, and where ever else.  If a whole nation was willing to blow itself up over a cartoon, that nation was never meant to exist.  

I have drawn my line in the sand.  I am a heretic.  I am a non-believer. I live under secular rule.  I live in a nation that has one of the best standards of living in the world.   It exists partly because we built a system that answers solely to the laws of man, not the laws of God.  It is the most beautiful system I could possibly imagine.  I will live.  I will die under this system.  Free speech is the most beautiful invention of man.  To me, the most crass, vulgar, ignorant comment from the lowest of cloddish ill-bred louts, is more beautiful to me than the most poignant of all scriptures ever written about a prophet who demands obedience.  To justify this, I can say with extreme confidence I would rather watch all three of the Jackass films with Johnny Knoxville and the rest of the cast repeatedly belching and farting in my face, than read the Quran.

If anyone does come to the wrong conclusion and say "I learned my lesson" "I have finally found respect" "I have finally grown up and learned to respect other people's beliefs"or some bullshit like that, I promise you there will be a FLOOD of the most blasphemous shit you have ever seen pour out of me in your life.  So if you want Draw A Cartoon of the Prophet Mohammad Day to just go away, keep your damn mouth shut.