Associated Press Dr. Kim Gottshall, right, tests the balance of U.S. Army Sgt. Ryan Kahlor, left, at Balboa Navy Medical Center in San Diego, Feb. 6, 2008. Kahlor's hearing was damaged by exposure to multiple IAD blasts in Iraq. Many soldiers and Marines returning from Iraq and Afghanistan are suffering from noise-induced hearing loss, a condition audiological specialists now consider an "epidemic" within the military. (AP Photo/Denis Poroy) SAN DIEGO Soldiers and Marines caught in roadside bombings and firefights in Iraq and Afghanistan are coming home in epidemic numbers with permanent hearing loss and ringing in their ears, prompting the...