We recently came across this artical on the Medical News Today website and thought about the scary potential that this has to harm the vision of unknown people. Take a look at this article: http://www.medicalnewstoday.com/articles/200685.php
If people can purchase military grade lasers that is just a scary thought, especially if a child has this ability. Lasers are not toys, and care should always be taken when using any type of laser (no matter the strength). Just something to think about.