And insurance companies could discriminate on the basis of latent genetic traits that "could" lead to problems in the future.
If an employer can discriminate on the basis of smoking (and they CAN), then they can also say you didn't pass "the company physical".
The day is not far off when our entire genetic makeup and health history in tandem with our geneaology is implanted into our upper arm on a microdisc. The chip is updated constantly by signals sent by low frequency waves using GPS positioning. We are terminated when we are nearing "critical mode" or our societal profitability profile falls below mean the monthly acceptable standard. Straight out of THX 1138.