Steven Levitt shares data that shows car seats are no more effective than seatbelts in protecting kids from dying in cars. However, during the question and answer session, he makes one crucial caveat.

"Freakonomics" author Steven Levitt presents new data on the finances of drug dealing. Contrary to popular myth, he says, being a street-corner crack dealer isn't lucrative: It pays below minimum wage. And your boss can kill you.

There is a question that has been tossed around by philosophers and art critics for decades: how much should an artist's intention affect your interpretation of the work? Do the artist's plans and motivations affect its meaning? Or is it completely up to the judgment of the viewer? Hayley Levitt explores the complex web of artistic interpretatio...

Mohamad Jebara loves mathematics -- but he's concerned that too many students grow up thinking that this beautiful, rewarding subject is difficult and boring. His company is experimenting with a bold idea: paying students for completing weekly math homework. He explores the ethics of this model and how it's helping students -- and why learning m...

Jacqueline Novogratz applauds the world's heightened interest in Africa and poverty, but argues persuasively for a new approach.