Scientist : Renowned international scientist Dr Saeed Akhtar Durrani declares that theoretically, both India and Pakistan possess the capability of producing a hydrogen bomb which is a 'thousand times more powerful than the atomic bombs dropped on Hiroshima and Nagasaki'. Talking to Dawn, Dr Durrani, who recently retired as Professor of Physics from the Birmingham University, England, strongly supported the signing of the Nuclear Test Ban Treaty by both India and Pakistan.