Virtual Iraq operates exactly like the Shyness Clinic, or any other talent hotbed for that matter. The desired skill is to experience traumatic events (footsteps, loud noises) without triggering the debilitating connection. They can't unbuild the circuit (remember, myelin only wraps; it doesn't unwrap), so the best way to gain the new skill is to establish and deep-practice a new circuit that connects the traumatic stimulus to normal, everyday events.