Ad campaigns launched for and against Keystone pipeline Add to ... CTV News Published Monday, Apr. 08, 2013 2:50AM EDT Last updated Thursday, May 02, 2013 11:12AM EDT More on the commercials produced by Keystone pipeline critics, and the pro-pipeline ads from the Alberta government. Watch More Video: Low oil prices can’t crush stampede spirit Hunt is on for WestJet bomb threat culprit 'I'm safer in Baghdad': Courtney Love caught in violent anti-Uber protest in Paris Greece suffering from 'brain drain' as thousands of doctors leave for Germany 'It's big business now.' Saskatchewan family sells farm after three generations on the land Say goodbye to popping bubble wrap? Shadow of debt crisis looms over Greek holiday isle Bomb threat made against Victoria-bound flight 'Yes' camp takes slim lead in Greek bailout referendum poll More Loblaw workers threaten to strike Trump is creating a 'nightmare scenario' for the GOP Freight train derails, catches fire in Tennessee Is the European Union divided over Greece? BP to pay $18.7-billion after 2010 Gulf of Mexico spill A glimpse at Canada’s least-visited national park Black church fires investigated across southern U.S. Animal control officers say dogs too often left in hot cars Foreign tourists say 'Cuban ethos' may fade with American influx South Korean 'comfort women' take protest to U.S. Sears Canada CEO steps down Comments AA More Related to this Story energy Video: Athabasca spill adds to Alberta oil's image problem Energy Video: Where do average Americans stand on the Keystone pipeline?