The U.S. Food and Drug Administration was given advance warning of the suspected case and proceeded with the reopening announcement anyway, said Gary Little, a veterinarian with the Canadian Food Inspection Agency.
full article:
http://www.theglobeandmail.com/servlet/story/RTGAM.20041231.wmadcow31/BNStory/Front/
Testing for Mad Cow is the big mistake though - look at Britain and France - the Brits tested for it and got burned big time, the French never bothered and enjoyed a great sales market.