Envelope tests positive for ricin at Washington mail facility

<div dir="ltr" style="text-align: left;" trbidi="on"><br /><object classid="clsid:D27CDB6E-AE6D-11cf-96B8-444553540000" height="234" id="ep_672" width="416"><param name="allowfullscreen" value="true" /><param name="allowscriptaccess" value="always" /><param name="wmode" value="transparent" /><param name="movie" value="http://i.cdn.turner.com/cnn/.element/apps/cvp/3.0/swf/cnn_embed_2x_container.swf?site=cnn&profile=desktop&context=embed&videoId=us/2013/04/17/piers-bash-ricin-letter-latest.cnn&contentId=us/2013/04/17/piers-bash-ricin-letter-latest.cnn" /><param name="bgcolor" value="#000000" /><embed src="http://i.cdn.turner.com/cnn/.element/apps/cvp/3.0/swf/cnn_embed_2x_container.swf?site=cnn&profile=desktop&context=embed&videoId=us/2013/04/17/piers-bash-ricin-letter-latest.cnn&contentId=us/2013/04/17/piers-bash-ricin-letter-latest.cnn" type="application/x-shockwave-flash" bgcolor="#000000" allowfullscreen="true" allowscriptaccess="always" width="416" wmode="transparent" height="234"></embed></object><br /><div class="cnn_strylftcntnt" style="background-color: white; border: 0px; clear: left; float: left; font-family: Arial, Helvetica, Utkal, sans-serif; font-size: 12px; line-height: 18px; margin: 0px; padding: 0px 0px 0px 10px; position: relative; vertical-align: baseline;"><div class="cnn_strylctcntr" style="border: 0px; font-family: inherit; font-style: inherit; margin: 0px; padding: 0px; vertical-align: baseline; width: 166px;"><div style="border: 0px; font-family: inherit; font-style: inherit; margin: 0px; padding: 0px; vertical-align: baseline;"><strong style="margin: 0px; padding: 0px;">STORY HIGHLIGHTS</strong></div><ul class="cnn_bulletbin cnnStryHghLght" style="border: 0px; font-family: inherit; font-style: inherit; list-style: none; margin: 9px 0px 0px; padding: 0px; vertical-align: baseline;"><li style="background-color: transparent; background-image: url(http://i.cdn.turner.com/cnn/.e/img/3.0/global/red_bull.gif); background-position: 0px 5px; background-repeat: no-repeat no-repeat; border: 0px; color: #333333; font-family: arial; font-size: 11px; line-height: 14px; margin: 0px; padding: 0px 0px 9px 7px; vertical-align: baseline;">Laboratory tests confirmed the presence of ricin, Senate official says</li><li style="background-color: transparent; background-image: url(http://i.cdn.turner.com/cnn/.e/img/3.0/global/red_bull.gif); background-position: 0px 5px; background-repeat: no-repeat no-repeat; border: 0px; color: #333333; font-family: arial; font-size: 11px; line-height: 14px; margin: 0px; padding: 0px 0px 9px 7px; vertical-align: baseline;">The letter had a Memphis, Tennessee, postmark and no return address</li><li style="background-color: transparent; background-image: url(http://i.cdn.turner.com/cnn/.e/img/3.0/global/red_bull.gif); background-position: 0px 5px; background-repeat: no-repeat no-repeat; border: 0px; color: #333333; font-family: arial; font-size: 11px; line-height: 14px; margin: 0px; padding: 0px 0px 9px 7px; vertical-align: baseline;">It was addressed to Sen. Roger Wicker, R-Mississippi</li><li style="background-color: transparent; background-image: url(http://i.cdn.turner.com/cnn/.e/img/3.0/global/red_bull.gif); background-position: 0px 5px; background-repeat: no-repeat no-repeat; border: 0px; color: #333333; font-family: arial; font-size: 11px; line-height: 14px; margin: 0px; padding: 0px 0px 9px 7px; vertical-align: baseline;">Ricin is a highly toxic substance derived from castor beans</li></ul></div></div><span style="background-color: white; font-family: Arial, Helvetica, Utkal, sans-serif; font-size: 12px; line-height: 18px;"></span><span style="background-color: white; font-family: Arial, Helvetica, Utkal, sans-serif; font-size: 12px; line-height: 18px;"></span><br /><div style="background-color: white; border: 0px; font-family: arial; font-size: 14px; line-height: 19px; padding: 0px 24px 19px 186px; vertical-align: baseline;"><strong style="margin: 0px; padding: 0px;">Washington (CNN)</strong> -- An envelope that tested positive for the deadly poison ricin was intercepted Tuesday afternoon at the U.S. Capitol's off-site mail facility in Washington, congressional and law enforcement sources tell CNN.</div><div class="cnn_storypgraphtxt cnn_storypgraph2" style="background-color: white; border: 0px; font-family: arial; font-size: 14px; line-height: 19px; padding: 0px 24px 19px 186px; vertical-align: baseline;">Senate Majority Leader Harry Reid said he was told the letter was addressed to the office of Sen. Roger Wicker, R-Mississippi. A laboratory in Maryland confirmed the presence of ricin after initial field tests indicated the poison was present, according to Senate Sergeant-at-Arms Terrance Gainer.</div><div class="cnn_storypgraphtxt cnn_storypgraph3" style="background-color: white; border: 0px; font-family: arial; font-size: 14px; line-height: 19px; padding: 0px 24px 19px 186px; vertical-align: baseline;">However, the FBI said additional testing is needed as field and preliminary tests produce inconsistent results.</div><div class="cnn_storypgraphtxt cnn_storypgraph4" style="background-color: white; border: 0px; font-family: arial; font-size: 14px; line-height: 19px; padding: 0px 24px 19px 186px; vertical-align: baseline;">"Only a full analysis performed at an accredited laboratory can determine the presence of a biological agent such as ricin," according to the bureau. "Those tests are in the process of being conducted and generally take from 24 to 48 hours."</div><div class="cnn_storypgraphtxt cnn_storypgraph5" style="background-color: white; border: 0px; font-family: arial; font-size: 14px; line-height: 19px; padding: 0px 24px 19px 186px; vertical-align: baseline;">In a statement late Tuesday, the U.S. Capitol Police said more tests would be conducted at the Army's biomedical research laboratory at Fort Detrick, Maryland.</div><div class="cnn_storypgraphtxt cnn_storypgraph6" style="background-color: white; border: 0px; font-family: arial; font-size: 14px; line-height: 19px; padding: 0px 24px 19px 186px; vertical-align: baseline;">The letter had a Memphis, Tennessee, postmark and no return address, Gainer wrote in an e-mail to senators and aides.</div><div class="cnn_storypgraphtxt cnn_storypgraph7" style="background-color: white; border: 0px; font-family: arial; font-size: 14px; line-height: 19px; padding: 0px 24px 19px 186px; vertical-align: baseline;">Sen. Claire McCaskill told reporters after a briefing for lawmakers that a suspect has already been identified in the incident, but a knowledgeable source said no one was in custody Tuesday night.</div><a href="http://www.blogger.com/blogger.g?blogID=8896966065785019252" name="em1" style="background-color: white; border: 0px; font-family: Arial, Helvetica, Utkal, sans-serif; font-size: 12px; line-height: 18px; margin: 0px; padding: 0px; vertical-align: baseline;"></a><span style="background-color: white; font-family: Arial, Helvetica, Utkal, sans-serif; font-size: 12px; line-height: 18px;"></span><br /><div class="cnn_strylftcntnt cnn_strylftcexpbx" id="expand18" style="background-color: white; border: 0px; clear: left; float: left; font-family: Arial, Helvetica, Utkal, sans-serif; font-size: 12px; line-height: 18px; margin: 0px 0px 20px; padding: 0px 27px 0px 10px; position: relative; vertical-align: baseline;"><div class="clickToPlay" id="clickToPlayvideoContainerexpand18" style="background-image: url(http://i.cdn.turner.com/cnn/.e/img/3.0/video/416_player_Click_to_play_off.png); border: 0px; cursor: pointer; font-family: inherit; font-style: inherit; height: 42px; left: 45px; margin: 0px; padding: 0px; position: absolute; top: 27px; vertical-align: baseline; width: 136px; zoom: 1;"></div><img alt="" border="0" class="box-image" height="120" src="http://i2.cdn.turner.com/cnn/dam/assets/130416185607-tsr-bash-suspicious-letter-sent-to-senate-office-00022225-story-body.jpg" style="border: 0px; cursor: pointer; font-family: inherit; font-style: inherit; margin: 0px; padding: 0px; vertical-align: baseline;" width="214" /><cite class="expCaption" style="background-color: black; background-position: initial initial; background-repeat: initial initial; bottom: 0px; height: 20px; left: 10px; margin: 0px; opacity: 0.85; padding: 0px; position: absolute; width: 214px;"><span style="border: 0px; color: white; display: block; float: left; font-family: inherit; font-size: 11px; font-style: normal; left: 4px; margin: 0px 0px 20px; overflow: hidden; padding: 0px; position: relative; top: 2px; vertical-align: baseline;">Letter laced with ricin sent to Senate</span></cite></div><div class="cnn_storypgraphtxt cnn_storypgraph8" style="background-color: white; border: 0px; font-family: arial; font-size: 14px; line-height: 19px; padding: 0px 24px 19px 186px; vertical-align: baseline;">Wicker, the junior senator from Mississippi, has been assigned a protective detail, according to a law enforcement source.</div><div class="cnn_storypgraphtxt cnn_storypgraph9" style="background-color: white; border: 0px; font-family: arial; font-size: 14px; line-height: 19px; padding: 0px 24px 19px 186px; vertical-align: baseline;"><a href="http://www.cnn.com/2013/04/16/health/what-is-ricin/index.html" style="border: 0px; color: #004276; font-family: inherit; font-style: inherit; margin: 0px; outline: 0px; padding: 0px; text-decoration: none; vertical-align: baseline;">A primer on ricin</a></div><div class="cnn_storypgraphtxt cnn_storypgraph10" style="background-color: white; border: 0px; font-family: arial; font-size: 14px; line-height: 19px; padding: 0px 24px 19px 186px; vertical-align: baseline;">Postal workers started handling mail at a site off Capitol Hill after the 2001 anthrax attacks that targeted then-Majority Leader Tom Daschle and Vermont Sen. Patrick Leahy, among others. Senators were told the post office would be temporarily shut down "to make sure they get everything squared away," McCaskill, D-Missouri, said Tuesday afternoon.</div><div class="cnn_storypgraphtxt cnn_storypgraph11" style="background-color: white; border: 0px; font-family: arial; font-size: 14px; line-height: 19px; padding: 0px 24px 19px 186px; vertical-align: baseline;">"The bottom line is, the process we have in place worked," she said. Members will be warning their home-state offices to look out for similar letters, she added.</div><div class="cnn_storypgraphtxt cnn_storypgraph12" style="background-color: white; border: 0px; font-family: arial; font-size: 14px; line-height: 19px; padding: 0px 24px 19px 186px; vertical-align: baseline;">A previous ricin scare hit the Capitol in 2004, when tests identified a letter in a Senate mailroom that served then-Majority Leader Bill Frist's office. The discovery forced 16 employees to go through decontamination procedures, but no one reported any ill effects afterward, Frist said.</div><div class="cnn_storypgraphtxt cnn_storypgraph13" style="background-color: white; border: 0px; font-family: arial; font-size: 14px; line-height: 19px; padding: 0px 24px 19px 186px; vertical-align: baseline;">Ricin is a highly toxic substance derived from castor beans. As little as 500 micrograms -- an amount the size of the head of a pin -- can kill an adult. There is no specific test for exposure and no antidote once exposed.</div><div class="cnn_storypgraphtxt cnn_storypgraph14" style="background-color: white; border: 0px; font-family: arial; font-size: 14px; line-height: 19px; padding: 0px 24px 19px 186px; vertical-align: baseline;">It can be produced easily and cheaply, and authorities in several countries have investigated links between suspect extremists and ricin. But experts say it is more effective on individuals than as a weapon of mass destruction.</div><div class="cnn_storypgraphtxt cnn_storypgraph15" style="background-color: white; border: 0px; font-family: arial; font-size: 14px; line-height: 19px; padding: 0px 24px 19px 186px; vertical-align: baseline;">Ricin was used in the 1978 assassination of Bulgarian dissident Georgi Markov. The author, who had defected nine years earlier, was jabbed by the tip of an umbrella while waiting for a bus in London and died four days later.</div><div class="cnn_storypgraphtxt cnn_storypgraph16" style="background-color: white; border: 0px; font-family: arial; font-size: 14px; line-height: 19px; padding: 0px 24px 19px 186px; vertical-align: baseline;">Wicker, 61, was first appointed by former Republican Gov. Haley Barbour to the U.S. Senate in December 2007 after the resignation of then-Sen. Trent Lott. He was then elected to the seat in 2008 and won re-election in 2012 to a second term.</div><div class="cnn_storypgraphtxt cnn_storypgraph17" style="background-color: white; border: 0px; font-family: arial; font-size: 14px; line-height: 19px; padding: 0px 24px 19px 186px; vertical-align: baseline;">Before joining the Senate, he was a U.S. representative in the House from 1995 to 2007. Before that, he served in the Mississippi Senate.</div></div>

Envelope tests Envelope tests positive for ricin at Washington mail facility

STORY HIGHLIGHTSLaboratory tests confirmed the presence of ricin, Senate official saysThe letter had a Memphis, Tennessee, postmark and no return addressIt was addressed to Sen. Roger Wicker, R-MississippiRicin is a highly toxic substance derived fro…

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