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File photo of increased security around the White House following the Boston Marathon bombing and the receipt of a letter that tested positive for ricin. (credit: JEWEL SAMAD/AFP/Getty Images)

FBI: Miss. Man Arrested For Sending Ricin Letters To Obama

The FBI says a Mississippi man whose home and business were searched as part of an investigation into poisoned letters sent to the president and others has been arrested in the case.

04/27/2013