I don't beleive that any of us are concerned about the possible damage to our eyesight from these lasers (however their power is indetermminet from the ground) it is the temporary impairment to your vision and the distraction.
In New Zealand a person was succefully convicted in 2009 of causing danger to an aircraft as it was on finals to Wellington:
Wellington man endangered flight with laser beam | Otago Daily Times Online News : Otago, South Island, New Zealand & International News
As it has quiet rightly been commented on by others having this occur whilst you are on a heavy work load situation such as : sling loading could cause tremendous problems. High value convictions by the Police are a definat way forward.
