A year ago Afghan tribesmen, with two months of NATO training and $70 bucks a month in NATO pay in their pockets, helped repel a major Taliban assault on the southern town of Chora. But in April NATO decided the tribesmen â" Afghanistanâs version of the âSons of Iraqâ militias â" were a security risk, and fired them all. âThe fix?â I asked in a piece for Wired.com. âMarines, of course, armed with fingerprint pads, iris scanners and electronic databases.â With these biometric tools, the Marines