By DIANA WEST Only the U.S. military could build a defensive wall of words -- "dismounted complex blast injury" (DCBI) -- around the bare fact that single, double, triple, even quadruple amputations are up sharply among U.S. forces on foot patrol in Afghanistan. So are associated pelvic, abdominal and genital injuries, according to a newly released report. Even the antiseptic language of the report is excruciating, as when it calls for "further refinement" of "aggressive pain management at the POI (point of injury)," or highlights the need to train more military urologists in "phallic reconstruction surgery."