[Gandalf_The_Gray]

Actually, not that hard. Think pet chips. There is a code that goes to another computer that has all the info. the Computer file is updated, the chip only has the number.

If you had read what I wrote you would have found that I said the same thing that you did. That is the RFID only holds a unique ID number which serves as a key into an on-line database. The article and some of the comments however assumed the chip held the records themselves which is clearly not practical for the reasons stated. In point of fact it is more likely that in implementing such a system that key cards similar to credit cards would be distributed rather then using the RFID invasive technology.

Regards,
GtG

[reaganaut]

No, the records on the chips themselves is not practical but a DB link would be and is probably how it will work.