consist of the leaders of the U$ , Mexico & Canada. On the 20th year of the NAFTA, there are still disagreements about resources. The Keystone XL pipeline has now encountered a stoppage in Nebraska as 3 farmers were able to mount a successful legal challenge to the Governor who rammed through the approval with out following regular process.
http://www.cbc.ca/news/politics/obama-makes-no-promises-about-keystone-at-three-amigos-summit-1.2543468