Why Europe is caught in the middle of U.S.-Iran tensions

Although tensions between the U.S. and Iran are high, officials from both countries insist they don't want a military confrontation. Iranian President Hassan Rouhani says Iran will resist sanctions but not wage war, while Secretary of State Mike Pompeo called sending more U.S. troops to the region a "deterrent." Meanwhile, U.S. allies in Europe are sharply divided on Iran. Nick Schifrin reports.