The link you posted said the detainment was for Al Qaida supporters. I suppose that could include a small handful of American Citizens who joined or supported Al Qaida or the Taliban. This Wikipedia entry also claims that it gives the military the right to detain journalists based on vague accusations.
My question is, how many journalists or American Citizens were detained under the defense budget legislation that is only good for a year? Are you saying that occupy wall street people were linked to Al Qaida or the Taliban and indefinitely detained?
I'm not saying, nor would I ever suggest, that the government doesn't do shady stuff. Just give me some examples of what you are talking about here so I can determine if it's legit. And if you say Assange, I'm going to have to remind you he is being held in the UK and charges that were manufactured with the assistance of a US intelligence asset, awaiting potential extradition to the US. So, you'd have to explain to me how that fits in with the NDAA story.