One time I spoke to a top Oncologist as the layman that I am and suggested freezing the area where Cancer Cells have been detected or utilizing a “Donald Trump” (Donald wasn’t actually in that conversation then but it gives a better illustration) to prevent such a spread and he said that was on the cutting edge of their research, so today I propose Formaldehyde. Scientist need to take healthy cells and see how they change to Cancer Cells step by step when introduced to Cancer causing Chemicals such as Formaldehyde. Once they see the beginning of such a change they might then either be able to reverse this pattern by introducing an Anti-Formaldehyde types of chemical, keep it from spreading to other cells, or find easier ways to detect the Cancer from the initial cell change. I believe to destroy evil you must see the foundations in advance and find ways to attack before major damage can be done.