Earlier quoted context omitted.
From what I've read, full body scans are awful for this--your body forms and kills tumors all the time. The false positive rate is ridiculous.
The more we measure, the better we get at separating the false positive cases from the serious ones. Especially in a world where AI plays a bigger role in the development of the medial sciences. Going forward into the future and not measuring more accurately because we are worried about false positives in our current limited understanding is a very conservative take.
On what basis do you say this? There is an extensive literature that refutes this. Scanners have been getting much better since the first CT scans and many more people are getting them.