FORT LAUDERDALE Soldier charged over arsenal Federal agents arrested a Fort Lauderdale soldier on weapons charges after they found caches of stolen weaponry and explosives. BY TRENTON DANIEL tdaniel@MiamiHerald.com Federal air marshal and Army Sgt. 1st Class David Kellerman was planning to take a few items with him on the way home to South Florida from Afghanistan: 11 grenades, a rocket-propelled grenade launcher, about 33 pounds of C-4 plastic explosives, a couple of assault rifles, a shotgun, a machine gun and more. The high-powered weapons were dismantled and hidden inside various bags and equipment. But U.S. Army inspectors found them...