It's not just the lasers that are a problem. There are 1 million candlepower handheld torches available now. My local garage will sell you on for £6.99 if you buy 6 quids worth of fuel. I mention this, as some pillock shone one at me (I assumed it was one of these due to it's brightness) while I was at 3DME on the approach to 06R at MAN a couple of weeks ago.