U.S.-chartered helicopters have begun flying Americans out of the besieged Haitian capital of Port-au-Prince, a State Department spokesman says, as the city continues to be controlled by criminal gangs. https://nbcnews.com/news/world/us-flying-americans-troubled-haiti-capital-rcna144363?cid=sm_npd_nn_tw_ma&taid=65fb9f349032a70001d2b476&utm_campaign=trueanthem&utm_medium=social&utm_source=twitter…