Joseph Neff of The (Raleigh, N.C.) News & Observer reports that a vehicle the Marines plan to use for transport of troops and mortars may be inadequate. The vehicles, called Growlers, look "a lot like a Vietnam-era jeep. But this model, a modified dune buggy, costs $127,000 each and doesn't have armor. Some experts worry that it is vulnerable to attack, too slow and too prone to rolling over, making it dangerous in combat." The Growlers would be carried on the V-22 Osprey, a tilt-rotor aircraft that can fly as both helicopter and airplane and has had its own share of problems.