@12 There are a lot more evangelical christians than there are suicidal muslim extremists and the evangelical christians outnumber their 'moderate' counterparts (at least in this country:
http://religions.pewforum.org/affiliatio…) whereas the suicidal muslim extremists form a minuscule fringe section of Muslims.
Also 'moderate' or 'mainstream' muslim leaders already do what you're talking about, e.g.:
http://www.jpost.com/Israel/Article.aspx…
http://www.democracynow.org/2010/8/12/i_…
Unsurprisingly, such messages rarely receive much media attention. People speaking out against violence draw far lower ratings than a couple yahoos with guns.
Regardless if mainstream leaders are speaking out against violence and terrorism, it's unclear that they can have any effect on the actions of the fringe. Angry people will seek out and find likeminded zealots and spiritual justification. Economically oppressed people with no hope will sell their lives cheaply, as long as they can take some of their perceived oppressors with them.
http://www.salon.com/2012/08/09/tea_part…