I also disagree with his premise that the data is too big for innocents to be caught in a dragnet. Has he never seen a heat map or a histogram? There are ways t

I also disagree with his premise that the data is too big for innocents to be caught in a dragnet. Has he never seen a heat map or a histogram? There are ways to characterize big data that can lead to false positives in the analysis. Additionally, an easy abuse of the system would be to look for people doing embarrassing things and link it to those people for later political blackmail or other neutralization. We don't have evidence that this has occurred, but I think it was indicated that the audit trails and other civil liberties protections were not implemented well in these systems.