In the wake of 9/11, a massive surveillance system quietly made its way onto our smartphones. The data of millions of Americans is for sale to the highest bidder — and it’s not always clear who’s buying. Here’s how information about everything, from where you got a drink last night (and maybe even with whom) to where you sleep, might be available for purchase by the national security apparatus — or even your own local police department. And they don’t need a warrant.

Go to audible.com/news where you'll find Peter Bergen's recommendations for other news, journalism and nonfiction listening.

See Privacy Policy at https://art19.com/privacy and California Privacy Notice at https://art19.com/privacy#do-not-sell-my-info.