Air Force Lt. Col. Darryl Sheets has been a pilot for 13 years, but when he switched to the new Osprey troop and cargo carrier, "it was like learning how to fly all over again." Even if you're just along for the ride, like civilians who got a demonstration Wednesday morning, the CV-22 Osprey takes some getting used to. Especially at the moment of truth, when this one-of-a-kind, helicopter-airplane hybrid switches from one mode of flight to the other - in midair. Critics disagree, but the Pentagon insists it worked out all the bugs for pilots such as Sheets during...