Why Would Swift and Co. Change Their Hiring Practices?

The Des Moines Register has a story saying that Swift and Co. is back to normal production levels two months after the immigration raids. Unfortanately, it looks our illegal employer problem will continue and Swfit and Co. even got some free advertising from the immigration raids. A Swift's spokesperson had this to say about their recent hires...

"One side effect ... of all the widespread media coverage was the world figured out we were hiring," he said. "(With) our own efforts for advertising, it has worked quite well for applications."

You would think that after 10% of your workforce is arrested, you would have to change your hiring practices, but no...

Swift has not changed its hiring practices since the raids. The company continues to participate in a government pilot program to help weed out illegal immigrants by checking for discrepancies in Social Security numbers, McHugh said. Human resource workers receive special training in detecting fraudulent documents.

Why would Swift and Co. change their hiring practices when they haven't been punished at all?