"When it comes to acid rain or oil spills or depleted fisheries or tainted groundwater or fluorocarbon propellants or radiation leaks or sexually transmitted diseases, national frontiers are simple irrelevant. Toxins don't stop for customs inspections and microbes don't carry passports. North America became a water and free-trade zone long before NAFTA loosened up the market in goods."
Source : "Interview With ‘The Host’ Actor, Max Irons Launching INC by Macy’s". Interview with Daniel Garofali, www.huffingtonpost.com. August 15, 2012.