Domestic extremists pose a serious threat to the U.S. military by seeking to add service members to their ranks, and joining the armed forces to boost their combat skills, according to a report from the Pentagon. “Military members are highly prized by these groups as they bring legitimacy to their causes and enhance their ability to carry out attacks,” the Defense Department report (pdf), compiled last year at Congress’s request and published on March 2, warns. “In addition to potential violence, white supremacy and white nationalism pose a threat to the good order and discipline within the military.” The report didn’t elaborate on how many white supremacists are current or former military members, or whether the threat is currently growing, but offered a number of examples of service members with extremist affiliations, and said the issue has become a growing concern in recent years. This week, the FBI classified the …