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Ricin found in letter sent to US senator

By Agencies in Washington | China Daily | Updated: 2013-04-18 08:02

An envelope addressed to a Republican senator tested positive on Tuesday for ricin, a potentially fatal poison, US congressional officials said, heightening concerns about terrorism a day after a bombing killed three and left more than 170 injured at the Boston Marathon.

One senator, Claire McCaskill of Missouri, said authorities have a suspect in the ricin case, but she did not say if an arrest had been made. She added the letter was sent from an individual who frequently writes to lawmakers.

Late on Tuesday, Senator Roger Wicker of Mississippi released a statement acknowledging the letter and said it was sent to his Washington office.

"This matter is part of an ongoing investigation by the United States Capitol Police and FBI," Wicker said. "I want to thank our law enforcement officials for their hard work and diligence in keeping those of us who work in the Capitol complex safe."

Shennell S. Antrobus, a spokesman for the US Capitol Police, said on Tuesday night that Capitol Police had been notified by the Senate mail handling facility that "it had received an envelope containing a white granular substance".

"The envelope was immediately quarantined by the facility's personnel and USCP HAZMAT responded to the scene," Antrobus said. "Preliminary tests indicate the substance found was ricin. The material is being forwarded to an accredited laboratory for further analysis."

Antrobus called the incident a "controlled event" and said operations at the Capitol complex had not been affected by the investigation.

FBI spokesman Paul Bresson said earlier initial field tests on the substance produced mixed results and that it is in the process of undergoing further analysis at an accredited laboratory. Only after that testing can a determination be made about whether the substance is ricin, Bresson said.

The US Capitol Police, which is also investigating the case, declined to comment.

Terrance W. Gainer, the Senate sergeant-at-arms, said in an e-mailed message to Senate offices that the envelope to Wicker had no obviously suspicious outside markings and lacked a return address. It bore a postmark from Memphis, Tennessee.

Wicker, 61, was appointed to the Senate in 2007 and won election to a full term last year. He previously served a dozen years in the House of Representatives.

He has a solidly conservative voting record, so much so that he drew notice last week when he voted to allow debate to begin on controversial gun legislation in the Senate.

Milt Leitenberg, a University of Maryland bioterrorism expert, said ricin is a poison derived from the same bean that makes castor oil. According to a Homeland Security Department handbook, ricin is deadliest when inhaled. It is not contagious, but there is no antidote.

"Luckily, this was discovered at the processing center off premises," Durbin said. He said all mail to senators is "roasted, toasted, sliced and opened" before it ever gets to them.

A congressional official said evidence of ricin appeared on two preliminary field tests of the letter, although such results are not deemed conclusive without further testing. The official spoke on condition of anonymity because the investigation remains active.

The discovery evoked memories of the days after the terrorist attacks of Sept 11, 2001, when mail laced with anthrax began appearing in post offices, newsrooms and congressional offices.

That included letters sent to two Democrats - Senator Tom Daschle, who was Senate majority leader at the time, and Senator Patrick Leahy. Two Senate office buildings were closed during that investigation.

Overall, five people died and 17 others became ill. The FBI attributed the attack to a government scientist who committed suicide in 2008.

More immediately, though, the discovery came as lawmakers were demanding answers to the attacks in Boston a day earlier.

There was no evidence of a connection between the bombings and the letter addressed to Wicker.

AP-AFP

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