Boston transit agency to randomly check bags, packages on subway and commuter trains. Italian police have arrested a man alleged to be a mastermind behind the Madrid train bombings. Security tight as G8 Summit opens today in Sea Island, Georgia. Police have activated an information line, and five to 10 volunteers will be manning the line each day until the G-8 Summit concludes. Anyone attempting to scale the fence will be shot with a paint pellet from an air rifle, marking them as trouble.”]