(Engadget) When Anthem revealed a data breach that exposed the details of more than 80 million people, the incident raised a lot of questions: who would conduct such a hack against a health insurance firm? Why? And what happens to the data? Well, investigators finally have some answers... and they're not quite what you'd expect. Reportedly, the culprits were Chinese hackers helping their nation understand how US medical care works. It may be part of a concerted campaign to get ready for 2020, when China plans to offer universal health care. If that's the case, the findings might explain a string of health-related breaches in the past few years.