Immediate threat scenario: Ad targeting based on genetic data that isn't available through other means. For example, discounted plane tickets to Ireland. Aerome

Immediate threat scenario: Ad targeting based on genetic data that isn't available through other means. For example, discounted plane tickets to Ireland. Aeromexico did a joke ad about this once. Alternatively, imagine a genetic "klout" type company that harvests such data and is used like a personality credit score. Your employer, university, landlord can check whether you have the right "personality traits" without directly falling afoul of anti discrimination laws. Notice that the important thing in both of these scenarios isn't whether genetics is truly useful here, it's that people believe it is regardless of actual efficacy. Phrenology and foot measurements were used for similar things decades ago. Future threat: individualized, immutable presence identification and tracking from eDNA. We can already do this in marine environments and at a species level elsewhere, but it's a very new capability.