Obama campaign was much more intrusive than NSA
Washington Examiner Editorial:
...I found the Obama campaign much more creepy poking through everyones life and suggesting to supporters that they contact some and talk about their previous voting record. They were even gathering data about websites they visited. ZI have yet to hear a single Democrat complain about the Obama campaign's violation of voter privacy.
But where were these admirers when Obama's 2012 re-election effort mounted the most powerful presidential campaign ever based on the same basic technology underlying the NSA surveillance -- the capture and analysis of metadata? The heart of NSA's defense of its surveillance -- also of Obama's -- is that the government is only tracking data about telephone calls, not listening to the people talking. Merging billions of bytes of call-data enables officials to identify potentially revealing trends and relationships such as Citizen A calls Citizen B every two days. Since Citizen B has known terrorist associations, Citizen A may as well.
That's how the Obama campaign worked, first by gathering billions of bytes of data about individual Americans on what they buy, where they eat, their hobbies, their political party registration and a thousand other characteristics. Next, the campaign techies harvested individuals who subscribe to certain publications, visit particular websites and donate to selected nonprofits in patterns known to match those of confirmed Obama voters. The NSA uses the metadata to identify potential terrorists sympathizers, much as the Obama campaign used it to locate potential political supporters. It's not coincidental that Silicon Valley denizens were prominent architects of the government surveillance programs and the president's reelection digital strategy.