Instant Index: Michael Phelps Allegedly Fails Sobriety Test, Gets 2nd DUI

Instant Index: Michael Phelps Allegedly Fails Sobriety Test, Gets 2nd DUI

David Muir reveals the stories people have been buzzing about all week.

Olympic Swimmer Michael Phelps Arrested for DUI

Olympic Swimmer Michael Phelps Arrested for DUI

Gold medalist was allegedly going twice the speed limit when pulled over.