Reportedly, the majority of Muslims are not fundies --- whatever their number, they have given new meaning to SILENT majority.
I compare it to the 1950's, here in the south, when white men were hanging black people. Not all Southerners were hanging people, but the rest didn't say or do a damn thing about it.
The only rational conclusion, if the 90% of the "peaceful Muslims" are silent, they agree with the "10 percent", (Not to be mistaken for the Walton and Johnson 10 percenters. ;)