Grumbling Generals in Preemptive Run for Cover?

James Pinkerton thinks that the generals calling for SecDef Rumsfeld's head may be trying a c.y.a. maneuver in case H.R. McMaster decides to write another book. Maybe, but given some of his past writings and his current involvement in Iraq, I'm not sure if Sec. Rumsfeld is the one he'd be going after.