Washington (AFP) - The US Supreme Court heard arguments as it struggles to determine whether domestic violence offenders could be barred from possessing a firearm even if they have only committed minor offenses. The high court's nine justices took up the case of James Castleman, who argues that his domestic assault conviction in Tennessee for intentionally or knowingly causing "bodily injury" to the mother of his child did not prohibit him under federal law from owning a gun. Investigators later learned that he was illegally trafficking guns, and Castleman was charged with violating a ban on gun possession for people...