Roosevelt employed the radio to great effect during the campaign. He was able to outline his platform while also improving the perception of his personality. In March, 1932, "The New York Times" quoted radio producer John Carlile, who said that Roosevelt had a "tone of perfect sincerity," while for Hoover, "the microphone betrays deliberate effort in his radio voice." The technology not only allowed Roosevelt to reach far more voters than he could via in-person campaigning, but also drew attention away from his paralysis due to polio. Roosevelt took great pains to hide the effects of the disease from voters, instituting a "gentleman's agreement" with the press that he not be photographed in ways that would highlight his disability.