Saying that “Islam is a religion of peace”, as the Prime Minister has repeatedly done, may be a worthwhile sound bite to cool community tensions and soothe anxieties. It could even help Muslim community leaders bring about what it declares to be already the case, though there is also the danger that it could alienate them. But it doesn’t throw much light on the problem of Islamic jihadism itself, which is what, in the light of the massacre of holidaymakers in Tunisia, David Cameron was addressing. Clearly, for some Muslims, Islam is not a religion of peace. And Mr Cameron wishing it so does not make it so. Nor is it helpful to go to the opposite extreme, as the commentator Melanie Phillips did in Monday’s Times, saying that calling Islam a “religion of peace&