From Brigitte Gabriel's "They Must Ne Stopped: Why We Must Defeat Radical Islam and How We Can Do It":
Even though the majority of of Muslims are peaceful, law-abiding citizens who do not wish to fight or declare jihad on their neighbors and colleagues, such moderates are irrelevant in the ware we are fighting. Most Germans were moderate as well. Their moderation did not stop the Nazis from killing 14 million people in concentration camps and costing the world 60 million lives. Most Russians were peaceful as well. However, Russian Communists cost the world 20 million lives. The same goes for most Japanese prior to World War II. Yet Japan was responsible for the killing of 12 million Chinese. The moderate majority was irrelevant.
Most moderate Muslims do not know the words of the Koran and are not religious enough to read the Hadith and the Sira, which have even worse commandments regarding declaring war on the infidels and killing them. Whenever moderates and radicals get into a debate about Islam, radicals always win because they back their statements with "facts" from the holy book while nonreligious Muslims cannot.
Here is a link to 2004 article concerning the then presidential candidates Kerry and Bush. The article and issues raised within are still relevant:
The Threat of a Faith-Based Defense of America