Students at Howenstine High Magnet School will be collecting donations for troops serving in Afghanistan as part of Make a Difference Day. But the students' efforts are not a one-day deal. Instead, Corrine Blum's service learning class decided to adopt a Marine unit as a yearlong project. They sent a box of letters and personal items to the troops last month and are now planning to adopt an Army unit. The project began when Blum told her students she was planning to send a package to a family friend serving in Afghanistan. She asked her students if they wanted to...