yar if u already knew there are secular muslims then y r u preddicting that Islam will be wiped out!! and I agree the muslim internal growth is the primary reason for the being highest growing religion ...but the regions where muslims are growing more are again like Indian Subcontinent where in not only muslims but others have always maintained a relatively higher growth rate compared to the world average always...PLS note even today there are more muslims liveing in the Indian Subcontinet (India Bangladesh Pakistan) then the middle east... there is more regional aspects with the issue then just garbling it with the name of religion....Please check the population growth of middle eastern countries ..its no where compared to India , Pak , Bangladesh....