Originally posted March 29, 2016.

Most of the 1.6 billion Muslims in the world are living peaceful lives, writes Peggy Noonan in the WSJ. “But Jihadists don’t want to be integrated. They want trouble.” By using a simple child’s math of 10%, Ms. Noonan offers some sobering reality:

Let’s say only 10% of the 1.6 billion harbor feelings of grievance toward “the West,” or desire to expunge the infidel, or hope to re-establish the caliphate. That 10% is 160 million people. Let’s say of that group only 10% would be inclined toward jihad. That’s 16 million. Assume that of that group only 10% really means it—would really become jihadis or give them aid and sustenance. That’s 1.6 million. That is a lot of ferociousness in an age of increasingly available weapons, including the chemical, biological and nuclear sort.