Calculating the martyrdom menace

In Policy Review, Tony Corn parses the threat:

The challenge for the West can hardly be overestimated: Even if only 1 percent of the world’s 1.2 billion Muslims were to end up being seduced by the global jihad, the West and moderate Muslim regimes would still have to deal with some 12 million jihadists spread across more than 60 countries. And if only 1 percent of these 12 million were to opt for “martyrdom operations,” the West would still have to deal, for a generation at least, with some 120,000 suicide bombers.

(It's in section I of a very looong article).