Norm,

Great post. I agree with it, for the most part. I used the term "reasonableness" previously and you correctly used a more descriptive and more accurate term "risk". Its all about risk management and trade-offs.

I would hope that you would also agree that sometimes the "risk" trade is made in favor of the sportsman for the better enjoyment of the great sport of fishing. That may include allowing species not normally present in the native watershed, and allowing boat trailers to transport boats with the risk of spreading unwanted noxious weeds.

Generally, people try to make the best decision they can based on the evidence they have and an assessment of the risks involved. We may or may not agree with those assessments.