First, the bill was proposed by Mark Formby. Let's not forget why he proposed the bill:
“I just don’t want my teachers punished in any form or fashion for bringing creationism into the debate. Lots of us believe in creationism,” Formby, the chairman of the House Revenue and Expenditure committee, said. “To say that creationism as a theory is any less valuable than any other theory that nobody can scientifically prove I just think is being close-minded.”
The bill itself was modeled after language from a model bill proposed by the Discovery Institute--but it turns out, even they weren't happy about Formby's comments:
To clear up the confusion, Discovery Institute has sent a letter to the Mississippi House Education Committee explaining what the language of the bill would really do and asking the Committee either to drop the bill because of the inaccurate statements put out by some of its sponsors or to make clear that the legislature understands that the bill does not protect creationism.
The letter in its entirety can be found over the Sensuous Curmudgeon, along with some really great commentary.
When the Discovery Institute is scolding you...perhaps it's time to rethink your life.