The sea lamprey example, which was the reason for the Great Lakes Fishery Commission being born, is an example of the great cooperation between the United States and Canada. We recognize that invasive species is yet another transboundary issue, because they don't recognize boundaries, so we're not working just with ourselves. There are differences between the two nations. They have an invasive species act, and we don't. There's probably a difference in commitment of funds as well.
But as far as us working with Europe, I don't know of a situation in which we're working with Europe on a federal level, or even a provincial level. Through universities, we do. We have collaborations with colleagues from overseas who are dealing with invaders before we get them, or sometimes the same ones that have happened to invade both sides of the Atlantic. We share information for the purpose of combining our efforts to understand what these species are doing. So at the university level--that is, at the scientific level--definitely there is an attempt to embrace collaboration with people from other parts of the planet who have different expertise or where they're seeing invasions that we haven't yet.