Limbaugh called illegal immigrants an "invasive species"

Referencing an April 1 federal court ruling that prohibited shipping boats from dumping of ballast water containing "invasive species," including some types of mollusks, into U.S. waters, nationally syndicated radio host Rush Limbaugh described illegal immigrants as an "invasive species" that U.S. courts willingly permit to enter the country.

From the April 1 edition of The Rush Limbaugh Show:

LIMBAUGH: So invasive species like mollusks and spermatozoa are not good, and we've got a federal judge say, "You can't bring it in here," but invasive species in the form of illegal immigration is fine and dandy -- bring 'em on, as many as possible, legalize them wherever we can, wherever they go, no matter what they clog up. So we're going to break the bank; we're going to bend over backwards. The federal judiciary is going to do everything it can to stop spermatozoa and mollusks from coming in, but other invasive species? We're supposed to bend over and grab the ankles and say, "Deal with it." Well, the mollusks may be brought in against their will. My point is they don't know where they are, and they, frankly, don't care. So if you ship them out -- but we can't ship 'em out. It's not that we can't ship 'em out. We're not going to be able to bring 'em in now, but invasive species that, say, on their own power and of their own desire and volition cross the border and come here, we can't say diddly-squat about it.