WASHINGTON - JANUARY 07: Washington D.C. Metropolitan firemen gather outside a U.S. postal facility with F.B.I. investigators where a letter reportedly "ignited" on January 7, 2011 in Washington, DC.... more 
WASHINGTON - JANUARY 07: Washington D.C. Metropolitan firemen gather outside a U.S. postal facility with F.B.I. investigators where a letter reportedly "ignited" on January 7, 2011 in Washington, DC. The postal facility screens mail and packages addressed to U.S. government offices. (Photo by Mark Wilson/Getty Images) less 
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Getty Images | Photo By Mark Wilson / Getty Images
Fri, Jan 7, 2011 5:17 PM EST