On today's news brief: 100 additional U.S. military personnel have landed in Nigeria to help train and advise local forces battling ISIS-linked terrorists, the second round of U.S.-Iran nuclear talks opened today, a transgender woman open fired at a high-school hockey game in Rhode Island killing three and critically injuring three others, and Senate Majority Leader Chuck Schumer introduced legislation to give the Pride flag the exact same legal protections as the U.S. flag.