In view of what you've said so far and of the fact that we're familiar with the issue, can we say, with no pun intended, that invasive species are invading more and that the impact, which is already estimated at several billions of dollars, may get bigger with time? We can take a cold look at these figures, but the situation is not improving. I believe that's your opinion as well.
On June 5th, 2008. See this statement in context.