Most of what we know about the torture at Guantanamo and other places comes from the government itself. I'm not a US citizen. I really don't believe anything the US is doing should allow Australia to put people in camps that have been labeled "concentration camps" by some unkind people, because of the pretty obvious similarities (extraterritorial, abysmal conditions, putting cost saving above basic human decency, lots of avoidable deaths, all ages, deterrence, "out of sight" nature ...).

The US prison system is stupid, no doubt. But even the worst prisons in the US are much better than what Australia is forcing refugees to endure. With the small difference that the US prison system doesn't have a 100% rate of non-convicted detainees, unless Australia's refugee detention.