It would have been nice if you had linked to an actual article instead of a general website(might as well link me to cnn.com and tell me to find it for myself). Even in this sensationalist rag of a website, I wasn't able to find any examples of torture that occured in the US, US bases, the UK, or UK bases. One article did complain that one of the prisoners was beaten but this was by
Syrian guards in Syria.
So, the challenge for you to provide evidence of your claims remains.