President Barack Obama met with senior advisers yesterday on efforts to forge a large Pacific free trade area. The proposed agreement involves 12 countries and represents nearly one-third of world trade. Negotiators are also meeting in Washington this week on a U.S.-European Union trade pact. Both are touted as important strategies for job growth and boosting U.S. competitiveness. Critics say they provide easy ways for corporations to circumvent hard-won health, environmental and consumer protections. Diane and her guests discuss the pros and cons of two trade agreements in the works and lessons learned from NAFTA.