'The Hero Next Door' highlights overlooked sacrifices of service members

For more than two decades, Martha Raddatz has reported from the front lines of America's wars, bearing witness to courage under unimaginable circumstances.

In her new book, the veteran ABC News journalist turns her attention to the service members, families and everyday Americans whose sacrifice often goes unnoticed.

Geff Bennett sat down with Raddatz to discuss "The Hero Next Door." ...