Researchers use NSA’s own tactics to see how invasive NSA spying is

"Stanford researchers are trying to act like the NSA in order to learn about the NSA. Researchers Jonathan Mayer and Patrick Mutchler created MetaPhone, an Android app which collects a phone’s metadata and compares it to basic information on Facebook. After learning that the NSA collects phone metadata from Verizon such as calling and texting logs, the researchers wanted to test how revealing this metadata is. “Some defenders of the NSA’s bulk collection programs have taken the position that metadata is not revealing,” Jonathan Mayer told MIT Technology Review."