Distraction at crucial point.
At the distance from landing that the Pilot would be distracted by a flickering light or sudden flash or reflection, the pilot is a) transitioning from instrument to visual and b) monitoring for any light coming on to indicate possible problem.
It does not have to be powerful enough to blind or do anything, merley distracting the pilot at that crucial time is enough to cause a major incident.
ATC had reported several aborted landings because of this distraction.
What part of the danger or believability of this article do you not undrestand.
Why do most people need to have these even ordinatry power laser pointers for anyway. Pick up the kid in the street with one and I don't think he will be about to give a lecture at the local university. They are mainly used by mindless morons to dazzle oncoming traffic anyway.