The dramatic drop in violence in Iraq is due in large part to a secret program the U.S. military has used to kill terrorists...The program...must remain secret for now or it would "get people killed," Woodward said Monday...
Impeccable logic from Mr. Woodward.
A guy on Wired Magazine links to this DOD document ... which I hasten to note is UNCLASSIFIED but nonetheless interesting.
http://blog.wired.com/defense/files/Richardson_Continuous.pdf