U.S. issues new Cuban travel, business rules

The U.S. is tightening restrictions on travel to Cuba and business with the country, due to take effect Thursday.The Treasury, Commerce, and State Departments say the rules are aimed at steering business away from the Cuban military, intelligence, and security services and to the Cuban private sector. A senior administration official says the new restrictions "have nothing to do" with "acoustic incidents" that have harmed at least 24 Americans in Havana over the past year.The U.S. will prohibit