said by bjbrock :

Because in out democracy the drafting is being done by my representative. I have a right to know what my rep is doing.

Perhaps you are not familiar with how a democracy is supposed to work.

said by TKJunkMail :

And perhaps you don't understand how treaties are negotiated. They are done away from the public eye or no treaty would ever be drafted due to pressures brought by populist groups from around the world.