I thought I saw this on SOTT a while back but can't seem to find the article. Here's another video:
https://www.youtube.com/watch?v=KfVS-npfVuY
At one point the lady asks, "Is it dangerous?" "It's dangerous," the man replies, and hey laugh about it. How dangerous, I wonder? As in, 'don't get in the way of the lasers', or just that you don't want it focused on you? Obviously it's high energy stuff.