WASHINGTON — The Pentagon is poised to announce new rules allowing transgender individuals to serve openly in the U.S. military, amid concerns from senior military leaders who believe the department is moving too fast and has yet to resolve many details, U.S. officials told The Associated Press. Defense Secretary Ash Carter is expected to announce the new policy this week, nearly a year after announcing his intention to make the change. The move would end one of the last bans on service in the military. Several senior U.S. officials, however, said that while the chiefs of the military services largely...