U.S. military official: Iran tested medium-range ballistic missile

A U.S. military official says Iran tested a medium-range ballistic missile on Wednesday. This comes as representatives from nations still involved in the 2015 nuclear deal are set to meet in Vienna to assess what parts of the agreement can be salvaged. Behnam Ben Taleblu, a senior fellow at the Foundation for Defense of Democracies, joins CBSN to discuss. Source