http://www.nytimes.com/2007/06/07/nyregion/07haven.html
I love this article. Basically, the New Haven city government passed a bunch of measures to protect illegals, then federal agents swooped in, John McClane style, and said, "The hell with this, if you jerks aren't gonna give us any help, we're gonna take matters into our own hands."
Now if they would only expand their mission to Miami, L.A., San Diego, San Fransisco, and the rest of those idiot "sanctuary cities" maybe we could return to being the United States of America instead of frigg'n Mexico North!