The FBI has labelled England's World Cup semi-final with Argentina the "highest risk" match at the tournament. Photo / Getty ImagesThe FBI has labelled England’s World Cup semi-final with Argentina the “highest risk” match at the tournament. Photo / Getty Images

A pre-match meeting between Fifa, police and the FBI discussed the historical divide between England and Argentina. Photo / Getty ImagesA pre-match meeting between Fifa, police and the FBI discussed the historical divide between England and Argentina. Photo / Getty Images