Oops, sorry, this place sells green lasers for $99.00.
The 5 mW laser pointers are not going to injure anyone's eyes in an aircraft, although they can make pretty streaks in the sky for a few hundred yards.
I would expect that anyone seriously trying to interfere with the operations of an aircraft would use a laser in the several watt range, and it probably would be an infrared laser.
I am still skeptical of the "tracking" and "lock-on" claims; if this is true it is essentially advanced military technology.
Without automated tracking, a person with a tripod and a telescopic site could manage a few swipes but not continuous tracking. That is, unless the aircraft is on a long final and the attacker is located not far from the end of the runway. In that case, a few seconds or tens of seconds would be easy.
Just googled this: http://www.wickedlasers.com - green for US$79.