Why was the constitution written in secret?

So they could get their business done. Imagine being in that room. They started in May to work on the constitution and May in the east coast is mild, but the humidity is just starting. The closed the Windows, were wearing wool suits buttoned to the neck, and had to use candles for light. They worked through to Sept. so by then it was really hot in that room and the humidity must have been awful. Yet they worked on and actually produced something that has lasted 200 years. I don't think we could do it today. Look, at the mess with the health care bill. Maybe if Congress had taken the same method to work and not say anything to anyone they could have actually gotten something done. The health care bill is a perfect example why some items need to be done in secret until they are finished.