The Army and Boeing are gearing up to test the service's High Energy Laser Mobile Demonstrator against rockets, artillery shells and mortars in the fall after successfully testing a lower-energy version in December, according to a top company official. Boeing plans to upgrade its HEL technology demonstrator, installing a higher-powered laser into a mobile system -- an Oshkosh Heavy Expanded Mobility Tactical Truck -- and perform a series of counter-RAM tests "in the fall time frame," Mike Rinn, Boeing's Strategic...