The most divisive issue in the creation of the new US constitution, following the Revolutionary War, was the issue of slavery. Of course, this remained a divisive issue until after the Civil War.
Independent
The issue you seek is slavery.
It is kept in the National Archives, along with the Declaration of Independence and the Constitution.
The reason why the framers kept the proceedings of the Philadelphia convention a secret is because they feared that if people knew about their arguments they would not except the new constitution. Also if people new about their discussions they would not feel as free to discuss their ideas.
Benjamin Franklin
Maybe they kept secrets?
Grandfather Clause
It was not safe. People kept saying bad words. People were discussing/ experiencing romantic situations. They started to give out free trials and codes to membership so they lost money. People were agreeing to meet in public. And (this happened to me) people were harassing other people for their password to we're they have to log off and are scared to log back on.
The Constitution does. The government makes laws and enforces them but the constitution actually protects individual's rights. The US is a constitutional federated republic. The government is kept in check by the constitution. Without the checks and balances that the constitution provides, the government could take away all rights of the people, controlling all they say and do. A government without checks and balances usually ends in dictatorship.
Rhode Island is probably what you are looking for.
reserved powers
Washington DC