There is another side to this
To scoot76. You say "however my government is going to pigeonhole me as a terrorist hacker". I'm interested to know how you think that, have they accused you of anything?
If you walk down a road past a burgled house and you are wearing a balaclava and carrying a swag bag, would you expect the police to show an interest in you? If they stopped you and let you on your way once they see you bag isn't full of swag would you think they had fair grounds?
If they are watching a drug dealer on a street corner and you innocently stop to ask the time and have furtive chat would you expect them to show interest in you?
Just because they see you looking suspicious does not mean you are branded and they will arrest you. I'm sure they have many ways of filtering out the millions of curios people.
I know there is a more to it, and I'm not entirely comfortable with the data collection, but as most of you work in IT I'm sure you'll realise that in order to do a search you need the data already there.
The article also confirms that it's mainly the meta data, they aren't reading your emails but just looking for links. If you become of interest then they know where to look.