Did the text of the Clean Air Act explicitly say it applies only to pollutants known in 1963? If laws can’t be interpreted to account for new circumstances, th

Did the text of the Clean Air Act explicitly say it applies only to pollutants known in 1963? If laws can’t be interpreted to account for new circumstances, then it must be legal to pay to have someone killed as long as you use Bitcoin — after all the law didn’t specifically ban the use of Bitcoin.