ATLANTA — The shooting of five U.S. Army soldiers at a base in Georgia on Wednesday is the latest in a growing list of violent incidents at American military installations over the years. Shootings have ranged from isolated incidents between service members to attacks on bases to mass-casualty events, such as the shooting by an Army psychiatrist at Texas's Ford Hood in 2009 that left 13 people dead. Here is a look at some of the shootings at U.S. military bases in recent years: In December, a