Officials: 2nd letter to Senate tested for ricin, both from Memp - DC News FOX 5 DC WTTG

Officials: 2nd letter to Senate tested for ricin, both from Memphis

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WASHINGTON -

The FBI says the letters sent to President Barack Obama and Sen. Roger Wicker are related and are both postmarked out of Memphis, Tenn., dated April 8.

In an intelligence bulletin obtained by The Associated Press, the FBI says the letters both say: "To see a wrong and not expose it, is to become a silent partner to its continuance." Both letters are signed, "I am KC and I approve this message."

The FBI says the substance in both letters have preliminarily tested positive for ricin, a potentially fatal poison.

Both the letters to Wicker, R-Miss., and to Obama were intercepted at off-site mail facilities.

The FBI says it is pursuing investigative leads to determine who sent the letters.

The FBI says there is no indication of a connection to the bombing at Monday's Boston Marathon.

FBI Response to Reports of Suspicious Letters Received at Mail Facilities

Washington, D.C. April 17, 2013

A second letter containing a granular substance that preliminarily tested positive for ricin was received at an offsite mail screening facility. The envelope, addressed to the President, was immediately quarantined by U.S. Secret Service personnel, and a coordinated investigation with the FBI was initiated. It is important to note that operations at the White House have not been affected as a result of the investigation.

Additionally, filters at a second government mail screening facility preliminarily tested positive for ricin this morning. Mail from that facility is being tested.

Any time suspicious powder is located in a mail facility, field tests are conducted. The field and other preliminary tests can produce inconsistent results. Any time field tests indicate the possibility of a biological agent, the material is sent to an accredited laboratory for further analysis. Only a full analysis performed at an accredited laboratory can determine the presence of a biological agent such as ricin. Those tests are currently being conducted and generally take 24 to 48 hours.

The investigation into these letters remains ongoing, and more letters may still be received. There is no indication of a connection to the attack in Boston.


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