Both of those links provided are merely speculation and opinion from Bush haters.
Margolis is a very respected conservative journalist, Paco. Molly Ivins leans left, but she's been noted for her investigative journalism time and again.
Just because they looked at the facts and came to conclusion that you don't like does not mean they are wrong. The fact is that your government is using torture and that it has tried to justify the use of torture and evade domestic and international laws against torture at the very highest levels.
If you don't like having a criminal for a president, then impeach him and get an honest man in there. If you don't like being criticised for using torture, then don't use it.