You walk into your doctors office and before you even sit down they have a trove of health data before you even tell them anything. If these were readily available just like say blood pressure testing at every pharmacy, we could perhaps catch certain health conditions early on.
Detect drug mules while they are still in the security line. Ex-post-facto parallel construction via "behavioral profiling" or a dog trained to alert on command keeps the technique secret. Collection of medical data is a lucky bonus.
I thought of another one, you sell health insurance and want to assess their health and your risk without asking the person. Heart disease got it, blood flow problems got it, liver issues yup, digestive issues yes. Ultrasound is used in many diagnostic tests this would be an insurance companies dream technology.
