>>Remember when the police couldn't just walk into a person's house without a warrant? Remember when a person used to be able to consult a lawyer if he/she were detained? Remember when they used to have to charge a person with something in a reasonable time or drop it? In fact, remember when they used to have to have a valid reason for throwing a person in jail - trials, judges, juries, that sort of stuff?
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>>I consider those lost personal freedoms and I wonder what's next; curfews?
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>But don't you agree that these are different times with very different type of threat. The enemy doesn't wear a specific uniform. He can be someone living in your neighborhood somewhere... you never know.

As I've heard it, many of the "prisoners" at Gitmo got there by acquaintances turning them in for some reward $$$. The accusers may not have even known them other than very casually, or even by word of mouth. Or the guy may have lived in an abode they coveted.
What if a neighbour of yours, needing some $$$, fingered you to the authorities? You too could them enjoy a long time in communicado, possibly topped off with a trip to Syria for a little bit of torture to get the information they know you have out of you.
Your writings here would be judged as some kind of "cover" to hide your "real motives". Your volunteering at some local shelter interpreted as your "meeting place" with other "conspirators".

It all may sound far-fetched, but the trouble is no one knows if it's already happened twice or 350+ or 10,000 times!