I've been using carbon nanotubes all week in the lab. Everyone in the industry knows they're like asbestos on steroids, which is why we handle them in a glove box in a 1K clean room. But that BBC story is a classic case of them jumping on the release of a paper and making it sound like shock news.

Carbon fibre is still fucking bad for you too when you break it (this has also been known for ages, even the monkeys on the shop floor at TVR got twitchy when I started cutting some up with scissors ;)), you don't want to be getting the power tools out around that stuff.

CNTs in consumer products like tennis rackets? Can't see the point myself. Theres loads of things they *might* be useful for, but sticking them in 'dumb' structural products with today's expertise is likely to be nothing more than a marketing gimmick.