SO much in this article .. sorry for all the snips .. ================================================= (snip) Valerie Plame had dinner with five of her classmates from the agency's training academy. (snip) But even though Plame's "cover" had been cracked wide open, her dinner companions didn't pry for details.(snip) "Cover is a mosaic, it's a puzzle," said James Marcinkowski, a former CIA case officer who attended the dinner. "Every piece is important [to protect] because you don't know which pieces the bad guys are missing." (snip) The case also has called attention to the precious, concealing commodity the intelligence community calls "cover." The...