Root cause of health-care crisis

Everywhere there is talk of health care, and I see signs that say "I'm a health care voter." Yet there is little talk of the root cause of the problem. As believers of free markets know, whenever there is an intervention that skews the normal operation of the market, disastrous results usually occur. Major interventions occurred in 1965 and 1973, and collectively they are the root cause of why prices have skyrocketed, as evidenced by this chart.

Let's attack the root cause and get back to a free market in health care, instead of piling more bureaucracy and regulations on top of the existing heap.