country s economy is expected to lose billions of dollars. more rain is in the forecast. the united states is pushing other countries to further isolate iran s government after it says it foiled a tehran-backed murder plot. the u.s. accuses iran of killing the u.s. ambassador. the alleged plot sun characteristic of iran s current government, some say. the nigerian man accused of trying to blow up a u.s. passenger play on christmas day 2009 has pleaded guilty to all charges against him. the so-called underwear bomber said he was guilty under u.s. law but not according to the koran. executives and engineers of rimm are in damage-control mode as problems with the mobile service spread into north america. research in motion s chief information officer issued a written apology to customers. we ll have more details on the story during world business today just minutes away. those are the top stories from cnn, the world s news leader. i m monita rajpal. good morning from c