The background is the availability heuristic. Parents demand schools adopt security measures to thwart "stereotypical kidnapping" (~120 cases in the U.S. annual

The background is the availability heuristic. Parents demand schools adopt security measures to thwart "stereotypical kidnapping" (~120 cases in the U.S. annually) when the gravest dangers children face are riding home in cars (~200k injuries annually) and obesity (20% of all U.S. children).