If this Washington Post article is correct, it looks like the NSA is harvesting contact lists from personal e-mail accounts. The article mentions specific numbers collected from Yahoo. GMail, Hotmail and FaceBook.

NSA collects millions of e-mail address books globally - The Washington Post

My gut tells me that the revelation of this information is intentional in order to further destroy any faith in our government. Most of the details are coming from the liberal media. Are they helping to incite a planned revolution so that the government can completely take over and remove what remains of our rights? This information also drives a deeper wedge between the already low level of trust between the USA and citizens of other countries. Nothing good comes from these types of announcements.