The outstanding Gene Expression has a brief post with links to a variety of guides on how to spoof automated fingerprint readers. It's clear that, using fairly simple and widely available technology, spoofing is feasible. It's also clear that, whatever the ID-control technology, criminal creativity will catch up with it - after all, the same people who came up with one of those also successfully fooled an iris scanner using only a high-quality photo of their eyes.
By the way, Gene Ex. are always worth reading and have one of the finest comments sections in the blogosphere.