Carp talks may miss bigger lake challenge

The focus of Monday's White House Asian carp summit is to stop the giant, ecosystem-ravaging fish from slipping in the Great Lakes' back door - the Chicago canal system that links the Great Lakes and the Gulf of Mexico.

But the governors who called for the summit don't just want to talk about carp; they want the Obama administration to tackle the larger issue of invasive species in the Great Lakes, which have become an ecological stew teeming with at least 185 foreign organisms.