Great letter. Mr.Levin Manages to get his point across without sounding whiny or antagonistic. My favorite line from the letter is "When citizens, legislators and police departments agree that a behavior needs to change, they do something about it."
Colin posted a great link in his comment:
http://www.myfoxaustin.com/story/22300726/crimewatch-apd-conducts-undercover-bike-operation-for-bike-safety
It would be nice to see something like this in Pgh. For that matter, wouldn't undercover cycling cops be an asset overall?