explosion near the iranian city of isfahan. the exact location has not been disclosed. it s reported it was part of a military exercise. a uranium conversion plant is located just outside that city. earlier this month a mysterious blast damaged a missile base near tehran. a woman in the state of georgia says she had a 13-year affair with republican candidate remember man cain. she made the claim in an interview with local tv channel. cain has been married for more than 40 years, marred with a lot of allegations against him. he says he knows the woman but denies the affair. this is the fifth woman to accuse him of sexual harassment or extramarital contact. i m monita rajpal. world business today starts right now. hello. welcome to wbt, i m andrew stephens in hong kong. i m charles hodson in london. the top stories on tuesday, november 29th. rupert murdoch squares off with shareholders as phone hacking revelations continue to rock his leadership. stock markets in europe