Immigrants Reduce Crime?

The Associated Press ran an interesting piece recently in which experts blame higher homicide rates on everything from more powerful weapons to shifting resources to anti-terror from regular crime fighting. The most interesting suggestion, however, was that immigrants keep crime down, since they want to keep out of the way of the law.

Here's a link to the whole story, via the Miami Herald. Though the story's mainly based on East Coast incidents, Los Angeles, as a major destination for legal and illegal immigration, figures prominently. I'd be interested to hear what people have to say about this....