And you don't see this getting abused?
That is fucking absurd.
Please list some of the things you would like to do but can't because you are not free. I can't think of any.
No fly list. http://en.wikipedia.org/wiki/No_Fly_List
When did we start to allow police forces in Western countries start to behave like militias?
It's been that way for over almost a decade now.
DHS just dropped ~$100 million on a bunch of APCs, school Districts are buying assault weapons for their on-campus police forces and the LAPD has been known to send out swat team members to deal with parking tickets.
The bottom line is: the police have realized that they can practically guarantee they get to go home at the end of the day if they treat every interaction like a military engagement and utilize overwhelming force to suppress their enemy. The fact that innocent people will get murdered in their zeal of officer-safety-at-all-costs doesn't even enter their thought process.
“...the complexity of modern federal criminal law, codified in several thousand sections of the United States Code and the virtually infinite variety of factual circumstances that might trigger an investigation into a possible violation of the law, make it difficult for anyone to know, in advance, just when a particular set of statements might later appear (to a prosecutor) to be relevant to some such investigation.”
Again, you are absolutely right. There wasn't much Quinn Norton could do when subpoenaed, but still I think this quote is particularly applicable given the context of the situation that Quinn Norton found herself in her unwitting contribution to the miscarriage and perversion of justice executed against Aaron Swartz.
I think subpoenas and discovery motions are two elements of our legal system that are oft abused to the detriment of this nation as a whole. The former by the zealous over-criminalization of America and the latter by copyright attorneys extorting money from individuals otherwise protected from identification by law. This case is just yet another incident of the rampant abuse of our legal system and what saddens and disgusts me is that there isn't much that can be done about it.
There is no opinion so absurd that some philosopher will not express it. -- Marcus Tullius Cicero, "Ad familiares"