When law enforcement authorities demand personal data belonging to those suspected of getting an abortion, tech firms will likely hand it over.

Why it matters: Companies like Google and Facebook collect enormous volumes of personal data, including information about where we've been, what we've bought, who we've talked to and what we've said.

How it works: Law enforcement already seeks access to location data, content, usernames, browser history and other online activity from tech companies through warrants or subpoenas.