freedom of speech has to be responsible.

This is a point of view coming from western governments and a few moderate Muslims, in an attempt to be conciliatory
there are limits to freedom of speech
advocating violence and murder are illegal under British law quite rightly but freedom of speech does not have to be responsible
What's next? Saying that Hamas are murderers and killers of innocent women and children is irresponsible because they don't like hearing my point of view.
it is nice when i agree with a point of view and view it as responsible but the essence of freedom of speech is to say things which may not be viewed as responsible even by a jury. It is the right to be controversial and to say things which the majority don't agree with. Even advocating breaking the law has a fine pedigree in terms of civil disobedience.
So I've said it in another post and I'll say it again. Fuck their religious sensitivites.
I am an infidel. I don't accept Mohammed as a prophet. I don't accept sharia law.
Get some tolerance. I don't expect u to conform to my values, although I would like to persuade u of their worth, and don't expect me to conform to your ideas of blasphemy, although in a reasoned way u can try and persuade me of their worth.
This is a fundamental clash of value systems and western politicians who don't argue that freedom of speech is a fundamental cornerstone of our civilisation are being craven or obtuse.
It is good to understand Muslim concerns and sensibilities, that is part of being a good neighbour or friend but I refuse to be dictated to by those concerns. I believe in the freedom of Muslims to practice their religion. I believe in my right to criticize their religion or Christianity or the government.
Satire has a long and rightly undignified history. It doesn't need to be responsible or constructive. It has an obligation to bite the hand that feeds it, to be unruly, uncivilized and attack vested interests and pomposity wherever they are found. Satire should attack Senators, Congressmen, and all politicians with their nose in the trough; bigots, racists and hypocrits. It should be cynical and beholden to no-one, be they editor or politician.
Hogarth would have been proud of the Danish satirists.