You can now buy 200mw red lasers online directly from China for £15, from places like dealextreme.com. The problem won't go away: quite the opposite. And as there are now red, green and blue lasers easily available, any attempt in eye protection will end up as it did for an engineer I knew who worked on laser projector TVs. Health and safety told him he had to wear protective glasses with filters tuned to each laser - he pointed out that once you took red, green and blue out of light there wasn't much left to work with.
I can't see any avoiding a ban on devices >5mw, which will be a huge pain for everyone with legitimate uses for the things. The ban won't work, of course (any guesses for how many small packages dealextreme and friends dispatch a day?), and it won't make offenders any easier to find - and there are plenty of laws, as we've seen, that can deal with them already. But there'll be a media panic and a new law rushed through, and that'll be that.