For each and every client worldwide?

You're going the secure 1MW reactors with armed special ops ex soldiers? Even if it's a 10MW farm on average, doesn't that explode the cost?

And isn't the fact that they'd be "spec ops" caliber guards reflect that there is in fact a security risk with these materials getting into the wrong hands? If so it seems like a committed enemy could attack one of the thousands of these sites successfully. The distributed model seems problematic.