WASHINGTON - Nearly six months after the FBI arrested a senior analyst at the Defense Intelligence Agency and charged her with spying for Cuba, her attorneys are in behind-the-scenes talks with federal prosecutors about her cooperation. Those familiar with similar espionage cases say Ana Belen Montes, 45, may already be sharing information with prosecutors in hopes of reducing a potentially severe sentence. Montes' high-profile lawyer, Plato Cacheris, has represented some of the most prominent spies of recent years, including FBI mole Robert Hanssen and CIA turncoat Aldrich Ames, both of whom agreed to cooperate with federal prosecutors in return for...