Why do we prefer Coke over a generic cola? Psychologist Paul Bloom tells the TED Radio Hour's Guy Raz that we come to believe something is better because we're told that it is.
"If smallpox is outlawed, only outlaws will have smallpox," says one NIH virologist. Others say keeping vials of deadly virus just invites a horrific accident or theft. WHO is about to vote — again.
The federal fire scientists hope to hand off their findings to fire managers, who have to make the quick decisions on where to deploy resources that could protect lives and property.
Nir Kalron was once an Israeli commando, then private security consultant to African leaders, and a dealer of legal arms. Today he's working with African locals to hunt ivory poachers via satellite.