There is growing debate among Democrats and Republicans over which president’s tactic helped find and kill Osama bin Laden. Was it the harsh interrogation techniques under the Bush administration, that included waterboarding and sleep deprivation  of detained al-Qaida members? Or was it old fashioned surveillance and intelligence gathering methods that got bin Laden? Scott Shane, national security reporter for The New York Times says that until all the documents are declassified, it may be difficult to know.