will continue to fulfill that promise as they search. >> identifying and returning th remains tends to be a challenging process. many haslett was the biggest forensic anthropologist to determine sex, rate age, and race of death. the milik of the family tree fo possible dna samples, though 99 percent of service members from korea have no dna record o file. forensic anthropologist will also examine remnants such as military uniforms, belongings,, and identification tags. experts say teeth and bones can be the source of mitochondrial dna which is used to match dna sick on the mother side of the family. the bottom line, the process ca take months or even years, toda defense secretary james maddox was asked about other remains not yet released. >> we also look at it as a firs