Whether it's gossiping over a drink, teaching our children, or politicians debating, we use words to communicate with each other and share ideas. It’s what makes us human. But what if we can’t? Could it be possible to broadcast our thoughts directly from our brains without the need for speech? In a recent episode of BBC World Service Radio’s “Discovery” program, Gaia Vince interviewed Philosophy Professor Adina Roskies (who is also the Chair of Dartmouth's Cognitive Neuroscience Program) and other scientists who say they are getting close to being able to read minds, and looks at the controversial privacy issues raised by the technology, such as could someone put thoughts into another's mind? Listen to the 27-minute program here.