Dr. Blanchet- Coronary Calcium Questions after seeing The Widowmaker Film

In the award winning documentary, "The Widowmaker", it states that
over 4 million people have died of heart attacks while there was
technology available that could have found these at risk people and
saved a majority of them. Why wasn't this technology more widely
known? Why wasn't it more widely used? Find out more on this and
other facts that are true about heart disease and heart disease
risk that we are also not being told. In the words of Dr. Bill
Blanchet, "Anyone who goes past age 50 without getting a heart scan
is putting themselves in jeopardy for no good reason."