The Terrifying Surveillance Case of Brandon Mayfield
February 9th, 2014Via: Al Jazeera:
During a live Web chat in late January, National Security Agency whistle-blower Edward Snowden explained one of the least discussed dangers of bulk collection. By indiscriminately sweeping up the call records and the international communications of Americans, the government has the ability to engage in retroactive investigation, or mining the historical data of targets for any evidence of suspicious, illegal or simply embarrassing activities. It is a disturbing capability that should make even those fully convinced of their own propriety to think twice before uttering out loud, “What do I have to fear if I have nothing to hide?”
But there’s another danger that Snowden didn’t mention that’s inherent in the government’s having easy access to the voluminous data we produce every day: It can imply guilt where there is none. When investigators have mountains of data on a particular target, it’s easy to see only the data points that confirm their theories — especially in counterterrorism investigations when the stakes are so high — while ignoring or downplaying the rest. There doesn’t have to be any particular malice on the part of investigators or analysts, although prejudice no doubt comes into play, just circumstantial evidence and the dangerous belief in their intuition. Social scientists refer to this phenomenon as confirmation bias, and when people are confronted with data overload, it’s much easier to weave the data into a narrative that substantiates what they already believe.
