In this 2005 Ted talk, Clay Shirky shows how closed groups and companies will give way to looser networks where small contributors have big roles and fluid cooperation replaces rigid planning.
Ernest Madu speaks to bringing world class health care to the poorest.
Bill Clinton asks for help to bring health care to Rwanda.
National Geographic explorer, Wade Davis, speaks about the disappearance of indigenous cultures.
Dr. Larry Brilliant talks about the eradication of smallpox and the need for a global system to identify and stop pandemics.
What makes us get sick? Look upstream.