The very next sentence: > It would serve as an initial check for cancer, with doctors following up positive results with more focused investigations. As a che

The very next sentence: > It would serve as an initial check for cancer, with doctors following up positive results with more focused investigations. As a cheap, quick way to approximate whether or not a patient has cancer, I think think is a huge improvement over the current method of relying on many expensive, slow tests. That does not scale, and I bet many folks that cannot afford it die because they have no way of knowing, with any percent accuracy, whether they have cancer or not.