We create digital breadcrumbs all the time — when we buy something online, when we post on social media, and even when we look up directions on the internet. This is data generally collected by private companies — but how and when should the government be able to access it?

There have been lawsuits filed recently against the Department of Homeland Security over its collection and use of consumer data. Jeramie Scott, senior counsel and director of the Surveillance Oversight Program at the Electronic Privacy Information Center, explains how the government collects data about us.