‘The Act of Killing’ looks into the mind of war criminals

The Oscar nominated documentary "The Act of Killing" challenges Anwar Congo, a death squad leader during the mass killings in 1965 Indonesia, to re-enact the horrors of his past. Director Joshua Oppenheimer spoke to the NewsHour's Jeffrey Brown about why Anwar and his friends were so boastful about their actions and what it was like to get a glimpse into the minds of killers.