What, according to smith, were the duties of the sovereign under the system of natural liberty? do you think there are other duties that should be added?

The duty of protecting the society from the violence and invasion of other independent societies

The duty of protecting every member of the society from the injustice or oppression of every other member of it.

The duty of erecting and maintaining certain public works and certain public institutions to erect and maintain

it was douglas macarthur..

it was certainly a debatable decision, mainly because it was based primarily on political - and not on legal or social - views. since the congress at that time was led by members of the republican party, and the territory that the tribes wanted to turn into an exclusively indian state was predominantly democratic, the proposal (as expressed in the constitution) did not succeed, but the constitution itself proved to be of crucial importance in the creation of the state of oklahoma, and, most importantly, it guaranteed the involvement of representatives of the indian tribes in the government of the future joint state.  

as a member of congress, i would have voted to ratify the constitution, or at least to have it tabled. ignoring it was an interested and partial decision.