If kids in singapore started flushing their dead genetically altered fish into the toilet; and assuming some ill effect takes place. What's stopping these DNA to be carried over to our shores after a period of time? If it was hard getting ppl infected with SARS to stay out of our borders, I hate to imagine how they prevent fish to reach our shores.

Well I suppose it's possible that a fish, having consumed the modified DNA, could be shipped to Canada as a pet, and then dies and is disgarded, thereby transfering the DNA to the environment in a roundabout way. However I think it's unlikely.

Certainly the nations of Southeast Asia would look at this in a manner different than the way we Canadians are.