But it is "Islamophobic" to notice, doncha know.

"An(other) Inconvenient Truth--about Terrorism," by Timothy Rhea Furnish for the [1] History News Network, October 19 (thanks to the astounding [2] Kathy Shaidle):

So, just over half the world's terrorist organizations are Muslim in origin and function. No other religious ideology is close--not even, most notably, Christianity (with its 2 billion+ membership, you'd think more would be involved in violence, wouldn't you?). Since Muslims make up 20% of the world's population, their involvement in over 50% of the world's terrrorist [sic] groups is telling and troubling--and something the NIS is loathe to admit, thus tainting its claim to "know...the nature of the threats."

[3] Read it all.