Notwithstanding former President Jimmy Carter's recent statement to the contrary, Undersecretary of State John Bolton's remarks about Cuba's biological weapons capabilities underscore lingering concerns with the rogue island only 90 miles from the United States. Bolton, on May 6, told an audience at the Washington, D.C.-based Heritage Foundation that the U.S. is suspicious about Cuban biomedical laboratories and their ability to transfer biological weapons technology to Iraq, Syria and Libya, all countries that Cuban President Fidel Castro visited last year. Bolton also made remarks, which may be interpreted as a clear signal of hardening State Department policy toward Cuba, faulting...