Unfortunately the media is not going to include the good side of things. ie: Cozumel being a safe tourist destination. The good news does not sell as well. If the media can't blow the story out of proportion and cause a frenzy they are not happy.
They will treat positive news like a classified add...back page/small print between appliances for sale and help wanted ads, but the bad stuff is front page! Although, in all fairness, the situations in our border towns are serious and does warrant reporting. However, the media is working it for all that it is worth.
As far as being safe in Cozumel I can say without a doubt that I feel safer walking around there,alone, even at night than I do in my own neighborhood sometimes. I have had the opportunity to travel to many cities, large and small in the US that have me more concerned for safety than San Miguel. In fact, the scariest incident I experienced was being lost @ 3 AM in downtown Baltimore...all I wanted to do was get out and find my way to the airport...My gosh I had never been so scared.
Maybe we need to contact our media resources and suggest they do some positive reporting. It most likely won't work, but, it's worth a try.