He also found in later years that his enthusiasm for high-tech had its limits when he concluded that some technological developments posed the potential to threaten the environment. During one appearance on "The Dick Cavett Show", Godfrey commented that the United States needed the supersonic transport "about as much as we need another bag of those clunkers from the moon." The concern that the SST contributed to noise pollution, an issue Godfrey was instrumental in raising in the United States, is considered to have effectively ended SST interest in the U.S., leaving it to Britain and France. (Cavett claims that Godfrey's statement also earned tax audits from the Richard Nixon-era Internal Revenue Service for the show's entire production staff.)