Revised travel rules are easing visits to Cuba for U.S. scientists, and the U.S. Department of Commerce now allows scientific equipment to be freely donated to Cuba, so long as it does not have potential military applications. Frances Coln, acting science and technology adviser to U.S. Secretary of State John Kerry, is helping shape U.S. government policy on what the rapprochement with Cuba means for U.S. scientists. Coln, a neuroscientist by training, made an official visit to Havana in April 2014.
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http://news.sciencemag.org/latin-america/2015/05/state-department-science-adviser-speaks-out-cuba