How the gut microbes you're born with affect your lifelong health | Henna-Maria Uusitupa
TED Talks Daily
To address the problem of counterfeit goods, African entrepreneurs like Bright Simons have come up with innovative and effective ways to confirm products are genuine. Now he asks: Why aren't these solutions everywhere? From password-protected medicines to digitally certified crops, Simons demonstrates the power of local ideas -- and calls on the rest of the world to listen up.