It is common knowledge that many forms of cancer have environmental as well as genetic components: for skin cancer, overexposure to sunlight can trigger its development. Lung cancer, of course, is blamed on smoking for lengthy periods of time. However, sometimes the genetic component can express itself without external assistance. Thus, it is worth noting that the genetic mutations which cause these two afflictions have been pinpointed by geneticists at the Wellcome Trust Sanger Institute of the United Kingdom. The errors are very specific and should be readily detectable with a genetic workup. Something which I find surprising is the …