Why would 11 of the most distinguished retired Air Force and Army officers, some former Air Force and Army Chiefs, others Air Marshals, come to the defence of SP Tyagi, the former Air Chief now being interrogated by the CBI for his role in the AgustaWestland VVIP helicopter scam? Tonight, a very special guest, the man who led the Air Force to victory during the Kargil war, Air Chief Marshal Anil Yashwant Tipnis (retired), tells us why he believes Air Chief Marshal SP Tyagi is being framed.