A Mississippi man is speaking out now that charges have been dropped against him in an investigation of ricin-laced letters.
Paul Kevin Curtis says he respects President Barack Obama, loves his country and that he "would never do anything to pose a threat."
Curtis says this week has been a nightmare.
Curtis was arrested last Wednesday after the detection of poisoned letters to Obama, a U.S. senator and a judge.
Charges were dropped late Tuesday after searches of Curtis' house failed to turn up ricin.