A Sacramento-based FBI special agent, who lives in Minden, presented a flag Tuesday to the sheriff's office which had been flown over the agency's facility in Kandahar, Afghanistan.Brad Bilderback presented the flag to Douglas County Undersheriff Paul Howell and Sgt. Pat Brooks.Bilderback said the American flag was flown at the FBI headquarters on May 15, 2012 in honor of National Peace Officers Memorial Day."We flew the flag for the Douglas County Sheriff's Office," Bilderback said. "I appreciate the hard work and outstanding job they do to keep our county safe."Howell said he was grateful for the flag and Bilderback's comments."It's …