Via Bruce Schneier.

In this case the experts are the people that make a living selling the fake cards:

(AP) Luis Hernandez just laughs as he sells fake driver's licenses and Social Security cards to illegal immigrants near a park known for shady deals. The joke _ to him and others in his line of work _ is the government's promise to put people like him out of business with a tamperproof national ID card.

"One way or another, we'll always find a way," said Hernandez, 35, a sidewalk operator who is part of a complex counterfeiting network around MacArthur Park, where authentic-looking IDs are available for as little as $150.

Basically it's a unsolvable problem that, even if successful, won't solve the problems the government wants it to solve.