For me, the answer to fighting these fundamentalist lunatics has to come from within Islam itself. We are infidels, even to some otherwise reasonably tolerant Muslims, and so what we say is not going to carry any weight.
I also think that there are many 'ordinary' Muslims who would like to speak out. They obviously know that their silence will be construed as complicity by many non Muslims. However, I think we have also to remember that these fanatics control people through extreme violence, implied, threatened, and actual.
Just as in Northern Ireland, many people are too frightened too say what they really think for fear of the possible repercussions to themselves and their families.
Isn't it enough that we get told on Friday sermons about these very matters and if we suspect something then we should report it to the authorities?
How many families can't believe that their own child decided to flee the country and join ISIS? You and I have seen them being interviewed and dumbfounded as to why...because Muslim households certainly don't preach such behaviour as far as I know. Therefore it is very difficult to find these people. It certainly does not happen in the mosques I frequent...And I certainly don't know of any other Muslims who have had this experience.
Maybe the authorities could do a better job of working with the communities and openly introducing some kind of avenue. They don't seem very forthcoming...set up agencies and offices etc....make it an open thing..that we are working together. I don't know of anyone who would not be willing to help.
When will people accept that it is not just a Muslim problem as most Muslims themselves are against all this...it is the problem of anyone who does not believe in what ISIS believe. I know absolutely zero Muslims who have time for ISIS..who have used Islam and as a result tainted it's name further, not hat the haters ever needed any help.
We do not openly know where these cells are, anyone who is fanatical and an idiot and is having these meetings in order to organise these conflicts..is not having them in my house or any other Muslim household. They do it out of the way..so much so that families do not know what their kids are doing until they wake up one day to find them missing.
This Muslim/non Muslim thing is where the problem lies....we are supposed to integrate and get vilified if we don't...yet it's our problem. To be honest I'm kind of glad it's only the public that has that perspective because if it was the govt who thought that then we are in trouble from every angle.

...and Mohammed was his only messenger 

At which point the local community bricked it. I dont think that was blasphemous tbf