Bob Woodward in his book Obamas wars, has stated that President Zardari wanted to clear the air about the controversy over civilian deaths from drones and told ex-CIA Director that Collateral damage worries you Americans. It does not worry me. Reporting this startling statement, Woodward said: Zardari had just given the CIA an important green light. I only wish it were not true. Would the spokesman for the President please clarify the statement attributed to Mr Zardari? COL. RIAZ JAFRI (RETD), Rawalpindi, October 12.