[camle]

and when they go to another company, another chip, and another, and another...

[oblomov]

Fortunately, our friends at the Dept. of Labor will release an Interoperability Standard.

[UnwashedPeasant]

"and when they go to another company, another chip, and another, and another..."

You just need one chip with an ID assigned to you, like a UPC code or SSN. It can be reused by your next employer, the grocery store, TSA, IRS, etc.