The U.S. Defense Intelligence Agency told congressional investigators last week it didn't need court authorization to monitor mobile device locations because the data is commercially available.

The agency admitted it gathered the information as part of ongoing investigations without obtaining a warrant. It's not the first time.

Today on Tech Tuesday on All Sides with Ann Fisher, we discuss the military's use of geolocation data, plus common-sense tips for taming the use of technology in your house.

Guests:
Byron Tau, reporter, the Wall Street Journal
Ben Moskowitz, director, Consumer Reports' Digital Lab
Russell Holly, contributing editor, Android Central