Well, that's the problem isn't it? The Koran is specific in its command to Muslims to kill anyone who refuses to convert.
Nothing that anyone can say or do can change what a billion copies of the Koran clearly state.
There is no such thing as a "moderate" Muslim, there are simply some who won't publicly acknowlege their religious beliefs.
Yes it's pretty clear on that. That seems to be the central problem in that religion/political system.