How the app 'RoboKiller' gets revenge on spam callers

According to the company RoboKiller, Americans received an estimated 58 billion robocalls in 2019. Robokiller is an app that answers the spam calls and then pranks the caller on the other end. Ethan Garr, senior vice president at RoboKiller, joins "Squawk Box" to discuss the rise in spam calls and how Robokiller proposes to stop them.
Thu, Jan 9 20207:06 AM EST