John Donvan and Caren Zucker
John Donvan is a multiple Emmy Award-winning correspondent for ABC and the moderator of the Intelligence Squared U.S. debate series. Follow him on Twitter @johndonvan. Caren Zucker is a Peabody Award-winning 25-year veteran of ABC News, and producer and co-writer of the six-part PBS series Autism Now. Follow her on Twitter @caren_zucker.