How long until this becomes the industry standard just like pre-employment drug screening.

http://news.ft.com/cms/s/ec414700-9bf4-11da-8baa-0000779e2340.html

A couple of questions:

Is there a way to easily remove these from employees?

Is there any way that a criminal could scan these in a way to know who has access to critical company resources and use that to gain entry to these same resources?

I guess something like this would at least make time tracking a thing of the past. Employers of the future will know EXACTLY what you are doing, and where, all day long.

Hyperbole? Sure, but as this becomes more accepted then the extremes get closer to reality.