::: I did check your reference and did not find anywhere in the Cato Handbook where Cato explicitly states that a reliable internal combustion engine in turn allowed the automobile and bus to replace streetcars. Heck, they didn't even say that both automobiles and buses were causes of descent for the streetcar in the handbook. Those views as mentioned before are only viewed by O-Toole and Cliff Slater. It seems like you are inserting Cato in there just because they don't support public transit and streetcars. I'm having trouble trying to ponder a way Cato belongs in that sentence/section. I'll revert and allow you to respond in the talk page and come up with a better (more accurate) sentence.