[DumpsterDiver]

He said the bill's cockfighting provisions are aimed at ensuring the safety of the poultry industry, because birds who fight foreign-raised birds could contract and spread exotic Newcastle disease and avian influenza, which could devastate domestic poultry operations.

Two or three years ago in California an outbreak of Newcastle's was caused by game cocks that were smuggled in from Mexico.

[Calpernia]

http://www.freerepublic.com/focus/f-news/1389260/posts?page=8#8

I think it was last year, there was an article posted here at FR about vendors at fleamarkets in Texas that had poultry for sale and they ended up being infected with bird flu. Birds were smuggled in from Mexico.