Your brain is amazing. And now medical technology can give us new ways to understand and use our brains.

Imagine being able to control a computer with only the power of your mind. Or read people's thoughts and know if they are lying. And what if a magnetic shock to the brain could make you more creative... But should we be able to engineer our minds?

• Think you're in control?
• Think your thoughts are private?
• Think you're smart?