Poison letter suspect's preliminary hearing tomorrow

A preliminary hearing has been set for tomorrow for a man accused of threatening President Barack Obama and others, after he allegedly posted them letters containing suspected ricin.

Paul Kevin Curtis, 45, is scheduled to appear in federal court later and if convicted could face up to 15 years in prison.

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Charge over Obama ricin letter

A martial arts instructor from Mississippi has been charged with attempting to use a biological weapon after ricin-laced letters were sent to Barack Obama and other officials.