I think it is important to note that these are GREEN lasers being reported.
Unlike the typical red laser pointers, a green pointer will create a visible beam in the air (assuming it is night). Since you can see the beam it is really easy to aim. Amateur astronomers use them to point out objects of interest in the night sky.
While I think the TSA, FBA, etc. need to evaluate the threat that lasers might evntually pose, I'd bet a significant amount that these recent sightings are caused by idiots with new christmas toys.