If I may say, just very quickly, segregation did not work in canola. GE canola contaminated so widely that even pedigreed and certified seed stocks could not be certified as GM-free. That's the reason why over 90% of canola is GM and you can only grow organic canola or non-GE canola in geographically isolated areas like Prince Edward Island.
On December 16th, 2010. See this statement in context.