The War on Cancer has been raging for over a century, and Tal Zaks may have the biggest breakthrough yet. His idea, to go straight to the source of the problem and edit the genetic code that causes the body to produce cancerous cells, could save millions of lives without a single surgery or chemotherapy regimen. Tal Zaks is the Chief Medical Officer of Moderna Therapeutics. Tal Zaks is the Chief Medical Officer of Moderna Therapeutics. This talk was given at a TEDx event using the TED conference format but independently organized by a local community. Learn more at https://www.ted.com/tedx