http://online.wsj.com/article/SB10001424127887323495604578535552983978828.html?mod=opinion_newsreel
Over the last 72 hours Americans have learned more about the National Security Agency’s surveillance programs, whose quasi-exposure appears to be a bombshell without a bomb. The political reaction is no saner as a result, but perhaps reality and substance will eventually prevail.
President Obama emerged to defend the NSA on Friday, noting that his assessment of the programs that originated under his predecessor was “that on, you know, net, it was worth us doing” because “they help us prevent terrorist attacks.” He also invited a debate about how we are “striking this balance between the need to keep the American people safe and our concerns about privacy, because there are some trade-offs involved.”
Mr. Obama is conceding too much to the folks who imagine the government is compiling dossiers on citizens and listening to calls a la “The Lives of Others.”
The NSA is collecting “metadata”—logs of calls received and sent, and other types of data about data for credit card transactions and online communications. Americans now generate a staggering amount of such information—about 161 exabytes per year, equal to the information stored in 37,000 Libraries of Congress. Organizing and making sense of this raw material is now possible given advances in information technology, high-performance computing and storage capacity. The field known as “big data” is revolutionizing everything from retail to traffic patterns to epidemiology.
Mr. Obama waved off fears of “Big Brother” but he might have mentioned that the paradox of data-mining is that the more such information the government collects the less of an intrusion it is. These data sets are so large that only algorithms can understand them. The search is for trends, patterns, associations, networks. They are not in that sense invasions of individual privacy at all.