Should the US once again decide to "turn within," it would likely not be as straightforward as before. Today's economic system is dependent on global trade and capital flows, outsourcing needs, and the exploitation of inexpensive labor and resources.
The TPP will affect our laws, our jobs, our food and our environment. Fast track, also known as Trade Promotion Authority, forces Congress to give up its right to amend and improve this trade deal for ordinary Americans.
That trade system has not delivered the promised benefits because it was designed not to. The agreements traded away the interests of American workers in favor of the interests of American corporations.
The United States' trade policy is left over from the 20th century. We are utilizing the same policy and fighting the same battles we did in 1985. But it's not 1985 anymore and the world has changed dramatically. We need a trade policy for the 21st century.