I don't think it has much to do with the separation of religion and state. Most European countries don't have separation of church and state, yet they don't teach this nonsense in science classes. It's a failure to understand the difference between science and non-science. I bet you'd have a hard time finding a Catholic high school using a creationist text in a science class.

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1977 300d 70k--sold 08
1985 300TD 185k+
1984 307d 126k--sold 8/03
1985 409d 65k--sold 06
1984 300SD 315k--daughter's car
1979 300SD 122k--sold 2/11
1999 Fuso FG Expedition Camper
1993 GMC Sierra 6.5 TD 4x4
1982 Bluebird Wanderlodge CAT 3208--Sold 2/13