Secret Service can spot ink 'fingerprints'
Thursday, August 5, 2010 - 16:42
in Mathematics & Economics
WASHINGTON, Aug. 5 (UPI) -- The ink on a letter can reveal much about the document's creator, even if that person is determined to stay hidden, U.S. government researchers say. United Press International - United States Secret Service - United States - Federal government of the United States - WASHINGTON