Harsh interrogation is not necessarily an effective tool for extracting valuable information.  Harsh interrogation of captives has not been shown to be effective (White, 2007). Those who are prepared to die to advance their cause are unlikely to yield information, no matter how much they are threatened or tortured. Where captives do provide information, they often state simply what they think that the interrogators want to hear, rather than anything that is true (Mazzetti, 2007). In addition, given the cellular nature of many terrorist organisations, those captured often have very little useful information to begin with. Even if they have been involved in a plot, they may only have information about a very small part of that plot. Furthermore, winning the trust of prisoners can lead to more effective information than the use of torture.