Google gathers personal health data on millions of Americans

The Wall Street Journal reports Google is gathering millions of Americans' personal health data in an initiative code-named "Project Nightingale."

Google is partnering with Ascension, the nation’s second-largest health system, to develop artificial intelligence-based services for medical providers. Google officials say the company's work is being done for free with the idea of testing a platform that can be sold to other health care providers.

According to The Wall Street Journal, impacted patients have not been informed of the data collection.

Read more from The Wall Street Journal.