Experts disagree on how close Iran is to a nuclear weapon, but most agree such weapons and a competent missile delivery system would be a horrific combination. Assuming diplomatic efforts fail to prevent the Iranians from developing nukes, retired U.S. Navy Captain Randy Duncan says effective missile defense is our best option. Captain Duncan says President Obama is not doing what’s needed to protect us and our allies and is actually degrading our missile defense capabilities. Duncan explains what steps are needed to keep us one step ahead of the Iranians and what the future of the program ought to look like.