US passport cards insecure

Do you know what a passport card is? An hour ago I did not. But now I know that the department of state is trying to offer an alternative to the normal US passport - A passport card, which can be produced for just 45% of the cost of a normal passport. With RFID implemented on the card it allows US citizens to cross borders to neighboring countries via land or sea. The card contains an ID that is transmitted when crossing the border. Those numbers are then checked against blacklists. There is just one problem. The numbers can be easily gathered and used to create fake passport cards. Equipment that can be bought for less than $2K can be used to do that.

Here is an article about the passport card by the state department: http://travel.state.gov/passport/ppt_card/ppt_card_3926.html

Here is a comment from Ari Juels, the director of RSA labs: http://www.rsa.com/rsalabs/node.asp?id=3557

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