We leave traces of ourselves everywhere we go, thanks to DNA. But an artist's new invention that claims to let you erase all evidence of your personal data could change that. ‘Invisible' is a spray from BioGenFutures that claims to delete 99.5% of your DNA from everyday objects. This includes the data you leave behind via your saliva, fingernails and strands of hair. The spray comes with a mysterious partner product called Replace, which apparently obscures the 0.5% of data remaining, allowing users total anonymity. The ‘genetic privacy' project is the brainchild of artist and BioGenFutures founder Heather Dewey-Hagborg, who...