I believe that statement to be true, but...
the 5% or so of radical Muslim extremists are committed to establish Islam as the single global religion, at any price. The 95% of peace-loving Muslims oppose the tactics of the terrorists, but will not denounce them. How many Imams or Muftis worldwide have you heard condemn the terrorist attacks of 9-11 and afterward?
Peace loving Muslims believe that Allah wants everyone to become Muslims, so although they oppose violence, they are willing to put up with it "temporarily", because once Islamic Law rules the globe, there will be no more conflict, only peaceful harmony. It is Allah's will.
The war in which we presently find ourselves is a religious war. It is Islam against all other religions and systems of life on earth. Until Americans and our elected govenmment representatives recognize that we are in a war for survival of our religions and our culture, we are doomed to lose.
The difference between an extreme Muslim, and a "moderate":
1) If you were armed, and you saw a Muslim jihadist about to kill a Christian child, would you kill your fellow Muslim to prevent it?
2) If you had reason to believe a fellow Muslim was planning a terrorist act, would you report him to the FBI?
If the answer to either is "no", then he needs to leave