All right. But at a time when Asian or African walking catfish stalk our land, and all sorts of purposely or accidentally imported flora and fauna have been over-flourishing, eating the wrong things and attracting worse things than they were brought in to eat, we can only hope the Mexicans have thought this thing through. Suppose, for example, those voracious carp get into the famed floating gardens of Xochimilco. There is no danger, claims an Olympic official. The rowing course doesn't connect with the gardens. But suppose the carp, with the run of the course, become more of an obstruction than the moss. Well, although Mexican navy guards watch over the carp at present, enforcing the "no fishing" signs, the official says, "maybe one day when these carp multiply after the Olympics, fishing will be allowed."
It sounds a little too easy. But if it doesn't work the Mexican government can always fly in 20,000 Japanese farmers and plenty of soy sauce.