Federal authorities say a Maryland inmate has been charged with threatening President Barack Obama and a federal judge in letters. Forty-year-old Willie Ray Bryant was indicted in U.S. District Court in Greenbelt. According to the two-page indictment, Bryant mailed a letter on October 12 with a threat to Obama. The indictment says he also mailed a letter in September to U.S. District Judge William Quarles that included a threat to mail an explosive device to the judge. Authorities say Bryant is serving a 40-year sentence for a string of robberies on the Eastern Shore.