Iran says it has built third underground ballistic missile factory

By Parisa HafeziANKARA (Reuters) - Iran has built a third underground ballistic missile production factory and will keep developing its missile program, the semi-official Fars news agency quoted a senior commander of the elite Revolutionary Guard as saying.The development is likely to fuel tensions with the United States in a week when President Donald Trump, on his first foreign trip, has called Iran a sponsor of militant groups and a threat to countries across the Middle East."Iran's third und