Conspiracies that voting machines contain hackable wireless devices. >> how am i supposed to know if anybody has used that wireless device to access our system? >> reporter: the danger is that these are people who may lie about election results, who are certainly likely to cast doubt about the trustworthiness of elections. >> as for ben johnson and what he has to say about all of this, in a word, nothing. he's refused to answer questions. in an email, accused cnn of being on a witch hunt when we went to his spaulding county offices, we were told on the phone that he was in a meeting, but when ...