I remember Facebook announced a while ago that it would scan its Facebook chat for "criminal activity", to give the info to the police.
http://news.cnet.com/8301-1023_3-57471570-93/facebook-scans-...
Where is the line drawn? And will we know where it's drawn? Stuff like this makes me trust "cloud computing" less and less. I hope Google and others realize this, before it's too late (for them) to change course.
I can take a guess where this is going, though, if NSA's actions are any indication - there won't be a line anymore, if they (government/corporations) are left alone to continue with stuff like this. Every single crime, no matter how small and insignificant, will be reported to the police, thanks to the mass surveillance capabilities of the alliance between NSA/government and corporations. After all, when "safety" is the ultimate goal, above all else, that outcome is all but inevitable.
It's already started:
http://falkvinge.net/2013/11/24/nsa-mass-surveillance-has-al...