The FBI has arrested a Mississippi resident for allegedly sending ricin-laced letters to President Obama, Senator Roger Wicker of Mississippi, and a local official. The suspect has been identified as Paul Kevin Curtis of Corinth, Mississippi. Both letters to Obama and Wicker went on the same day out of Memphis and contained identical phrases. Earlier in the day, authorities forced the partial evacuation of the Hart Senate and Russell Senate buildings on Capitol Hill over concerns about suspicious packages. The buildings were reopened after tests showed no dangers.