One thing I'm confused about, the room didn't look to be full of smoke. How was the laser visible to human eyes at all? Has there been some upgrade or change in laser tech so you can see a solid beam in transit now?,(reply>), You can get cheap ass laser pointers off eBay with visible beams if you're in a decently dark room, just because little key chain lasers aren't visible doesn't mean they're all like that,(reply>), We used a hazer