This article about Google's project to store and analyze millions of Americans' health care data confirms my suspicions about the Fitbit acquisition.

Many people who don't care about mass data collection because "I've got nothing to hide" change their tune when it's health care data. #privacy

https://www.wsj.com/articles/google-s-secret-project-nightingale-gathers-personal-health-data-on-millions-of-americans-11573496790