The Christian Science Monitor reported that an “NSA audit from May 2012 counted 2,776 incidents in the preceding 12 months of unauthorized collection, storage, access to, or distribution of legally protected communications, the Washington Post reported Thursday.”
Follow the above link to read more about this story. Given that the NSA is one of the most secretive agencies in the U.S. government I would not be surprised if they drastically deflated the numbers of abuses per year. And it should be noted that this report only reflects NSA abuses in Washington. Taking into account the many other NSA posts around the world, the actual number of “violations” could possibly be as high as 15,000-20,000 per year. This would represent literally millions of innocent individuals' private communications being analyzed by the government.