The pointers people are using to do this aren't exactly that powerful, probably 30mW at the most, which at that distance isnt particuarly bright, I've had the beam from my romisen flash into my eye from enarly 100M and the dot was just about and inch wide, and my sight was still fine after it. and if you shone it at a plane, a good bit would also reflect off the window and now go through,But it would be really distracting for a pilot even if it wasnt enough to damage their sight.
Diachi
Diachi