August 2, 2013 The head of the U.S. Postal Service says the exterior of billions of pieces of mail are photographed and that the information is sometimes shared with law enforcement.
June 7, 2013 News outlets in Louisiana and Texas report that the wife of the man who had been a "person of interest" is under arrest. They were reportedly going through a divorce. She had told authorities her husband might have sent the letters to President Obama and New York Mayor Michael Bloomberg.
June 3, 2013 Maximum punishments for the counts leveled against James Everett Dutschke range from five years to life in prison. He was arrested in April on suspicions that he sent letters containing the poison ricin to President Obama and other officials.
May 30, 2013 Law enforcement officials say the letter is similar to two that were sent to New York City Mayor Michael Bloomberg. Preliminary tests of the letter to Bloomberg turned up traces of ricin.