Finally, an invention John Waters can get behind. When the harbinger of filth brought the odiferous experience to screenings of Polyester, he took the scratch-and-sniff route -- including scents like glue and feces -- now a team of researchers at the University of California in San Diego are expanding on the smell-what-you-see concept, albeit in a much more high-tech fashion. In collaboration with the Samsung Advanced Institute of Technology, the team has developed a method for