World and National News: Castro Extends Olive Branch, Brown Visits Washington, U.K. Allows U.S. Missile Defense, Iran Stands Firm, Obesity May Be Contagious

Cuba s Raul Castro Offers to Meet Next U S President Bush and U K PM Brown to Meet U K Agrees Airbase Can Be Used For U S Missile Defense System Ahmadinejad Says Iran Won t Halt Atomic Work Obesity May Be Spreading Through Friends and Family