Ew!

This has all the makings of a SciFi Channel moovie special:

STERLING, Va. - Customs agents see foreigner travelers try to bring a lot of unusual items into the U.S., but one slimy seizure over Labor Day weekend could have been devastating to crops.

A traveler from Ghana tried to bring 14 Giant African Land Snails into the U.S. at Washington-Dulles International Airport Sunday.

The snails, which were as large as a child's fist, are said to be one of the worst invasive species in the world and have caused economic damage to crops.

The snails are known to eat at least 500 different types of plants and to reproduce rapidly. They can grow to be nearly 8 inches by 4 inches big.

The traveler declared the snails, but they had to be destroyed because they are illegal in the U.S.

I can see, say, Erik Estrada as the harassed head of Customs, with Jessica Alba as the forensic biologist who knows that the snails are on the brink of mutating into giant, flying, vampire snails if they're not stopped.