Is that an "S"? I thought it was a smiley

Plame’s Identity Marked As Secret
Memo Central to Probe Of Leak Was Written By State Dept. Analyst

By Walter Pincus and Jim VandeHei
Washington Post Staff Writers
Thursday, July 21, 2005; Page A01

A classified State Department memorandum central to a federal leak investigation contained information about CIA officer Valerie Plame in a paragraph marked “(S)” for secret, a clear indication that any Bush administration official who read it should have been aware the information was classified, according to current and former government officials.

http://www.washingtonpost.com/wp-dyn/content/article/2005/07/20/AR2005072002517.html