Torturing POWs

[WateringHole]

I was watching Bill O'Riley yesterday. He mentioned POWs at Guantanamo Bay are being water tortured and he claimed it has been successful in extracting valuable information. O'Riley claimed the FBI was able to stop nine different terrorest bombings.
To begin with, I don't recall hearing anything on the news about the FBI putting a stop to nine different terrorest attacks due to information they extracted from POWs and also, I have my doubts about such information being believable due to false stories that was fed to the American people about the Iraq War in the past. Such a story could cause many American people to support the govertment using torture on POWs if such valuable information can be extracted.
I'm curious if the govertment would go as far as using such torture as electric shock, cutting off fingers and toes, blinding somebody in one eye, if they haven't already done it.
Last but not least, would the govertment take the position "if we can get POWs to give us information that's useful by using torture, than lets use torture on American citizens where needed". During WWII, Germany and Russia used torture tactics on their own ciitizens. If it can happen in other countries, it can happen over here also.