I've noticed that that is a trademark of some of the actors who come out against the war. I wonder if it is what you said, or if they are playing a role. A cliched role at that.
I have known a few desolate individuals who have burned out (literally) their synapses with decades of drug abust.
They speak haltingly, stare vapidly, wander, lose their train of thought etc exactly the way that Ford does.