- You shed DNA everywhere you go – trace samples in the water, sand and air are enough to identify who you are, raising ethical questions about privacy https://theconversation.com/you-shed-dna-everywhere-you-go-trace-samples-in-the-water-sand-and-air-are-enough-to-identify-who-you-are-raising-ethical-questions-about-privacy-205557 71 comments technology