Forwarded message:

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Presumedly the state of the EEPROM cannot be deduced by any external examination of the card, and any attempt to incrementally abrade the card down to the relevent circuit elements should completely obliterate the minute charge differences which represent the data.

They aren't immune to the laws of physics. If it can be put together, it can be taken apart. I can even surmise HOW it can be taken apart.

You wouldn't even have to take it apart. Just subject it to analysis using SQUID's. Using this technology you would not even have to physicaly touch the card, let alone remove any parts of it.