(5/11/2015) In marketing the Trans Pacific Partnership (TPP), President Obama has been emphasizing some of the features that distinguish it from earlier free trade agreements such as NAFTA. They include commitments by Pacific countries on the environment and expansion of enforceable labor rights. Also new is the geopolitical argument for the much-discussed “pivot to Asia.” (Detractors, for their part, focus on some partly new features as well, such as investor protection, which is said to benefit only big corporations.)