it s february 25th hello i am deborah feyerick. former south african president nelson mandela is recovering from a hernia operation. we ll go live to johannsburg in a few moments. primaries in michigan and arizona are three days away. gas price mot just imagination have jumped 30 cents in the last month. we ll go inside the numbers. we begin with breaking news out of afghanistan, at least two u.s. officers were and killed in the interior ministry in cable. nick paton walsh, nick, how did it happen inside? reporter: that is the big question. people i think are struggling, isaf, nobody can pin it down. we do know the americans were inside a secure part of the ministry, perhaps their own separate compound, we do know that the gunman according to isaf is not a westerner, probably are afghan, that has not been confirmed by any afghan officials. and we know the taliban claimed responsibility. it s not to say they necessarily did it, they have a track record of previously