Nanotechnology: Good Things in Small Packages (By Glenn Reynolds, writing in Popular Mechanics)
"Then there's the nanotechnology that's just, well, fake. It may turn out to be the most dangerous kind to date. Earlier this year, newspapers reported that a German cleaning product called Magic Nano had been recalled after dozens of users suffered lung problems.
"Was this a sign that industry and regulators couldn't be trusted to keep nanotechnology safe, that we were all doomed, doomed? Apparently not. A few weeks later, it was reported that Magic Nano didn't actually contain nanomaterials. It was just a marketing slogan designed to trade on the reputation of nanotechnology as something revolutionary. Nobody knows why the users got sick, but it had nothing to do with nanotechnology." More here