In the current issue of The New Yorker, Ian Frazier—who can make plastic grocery bags interesting—doesn't have to work so hard to tell the terrifying story of the Asian white carp, two invasive species that have infested the major rivers of the Midwest. The article isn't available online, but it's worth picking up a copy of the magazine for Frazier's article alone. This video gives a sense of the danger these fish (literally) now pose:
Responsible fishermen have tried for years to explain to the general public that invasive species are destroying our ecosystems. It's probably going to take something like a jumping Asian carp killing some kid in a boat to get people's attention.