[nradov]

Yes some people will always try to commit insurance fraud. That's nothing new. Insurers typically guard against that by looking for suspicious data patterns. And most providers won't participate in fraud due to the risk of getting kicked out of insurance networks, or being punished by state licensing authorities.

We already have a 2D scanning appliance which can measure body fat to 1% accuracy, even for weightlifters. It's called a DEXA scan. Currently scans cost about $50 and take several minutes, so not really practical for screening millions of people every year. But I'm sure engineers are working on improving cost and speed.