Statistical studies show that last year there was the greatest drop in the violent crime rate over the course of a year since such statistics were first gathered.
Given that
Last year saw the largest one-year drop in the violent crime rate since such statistics were first gathered.
Why is it that
Public anxiety about violent crime substantially increased over the same period?
Evaluate
If people responded to the actual crime rate, anxiety should have fallen along with crime. Instead it rose. So people must be responding to something other than the statistics.
Anxiety is psychological, so we just need a story to tell for why the public's psychology about violent crime is worse than before.
Goal
Find an answer that gives us something that changed last year that would have a common sense effect of increasing people's concerns about violent crime.
It's not enough for them to be oblivious of the improved crime stats, because being oblivious would just mean "they didn't become less anxious". We want something that is actually making them fear violent crime more than before.