America's biggest Olympic hero yesterday accused George Bush of exploiting the Athens Games for his own political advantage in the run-up to the presidential election. Carl Lewis, who won nine Olympic gold medals in athletics in a record-breaking career, condemned Bush for using the presence of Iraqi and Afghan teams in Athens in a television advertisement to boost his chances of re-election. Criticising Bush for linking his foreign policy with the two countries being allowed to compete here, Lewis said: 'I felt that was disingenuous. It is funny that we boycotted the 1980 Games [in Moscow] in support of Afghanistan,...