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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.

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Secret Service launch investigation into suspect letter

A letter addressed to President Barack Obama containing a suspicious substance was received at a White House mail screening facility on Tuesday, the US Secret Service has said.

The facility is remote and not located near the White House itself. This facility routinely identifies letters or parcels that require secondary screening or scientific testing before delivery.The Secret Service is working closely with the US Capitol Police and the FBI in this investigation.

– White House spokesman Edwin Donovan

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