This theory of Hitler's flight to Argentina has been dismissed by mainstream historians, including by Guy Walters.[11] He has described Dunstan and Williams' theory as "rubbish", adding: "There's no substance to it at all. It appeals to the deluded fantasies of conspiracy theorists". Walters contends: "it is simply impossible to believe that so many people could keep such a grand scale deception so quiet", saying "no serious historian would give the story any credence".[12]