Prominent among judicial doctrines ripe for reversal — right up there with contributory negligence and baseball’s antitrust exemption — is the rule immunizing the government from negligence claims by military personnel for injuries suffered on the job.The Supreme Court long ago carved out a military exception to the Federal Tort Claims Act, the law that subjects the government to suit when the negligence of federal workers causes injuries. In Feres v. U.S., 349 U.S. 135 (1950), injured service members …