A look at Google's healthcare efforts, like Project Nightingale and "Guardian" search tool, which are drawing scrutiny over mass collection of medical records (Wall Street Journal)

Wall Street Journal:
A look at Google's healthcare efforts, like Project Nightingale and “Guardian” search tool, which are drawing scrutiny over mass collection of medical records  —  The company has struck deals that grant it access to millions of patient records  —  PALO ALTO, Calif. …