The FBI reports that the declining trend in violent crimes has been going on for 5 years now (while the incarcerated population continues to grow. Hmm-m-m, ...wonder if there could be some sort of a cause/effect relationship there).
Very doubtful. More than likely, the term "violent" has been re-defined not to include murder etc. but things like flying a plane into a building and killing more than 750. They've taken a lesson from the educators who just change the rules, when kids aren't passing the tests, they give them 70 pts for showing up. Violent crimes in my city do not get reported to the news and I doubt show up in any legitimate records. That keeps the 'ol count down.