Some places are meant to be locations where you have to be aware, alert, and careful. I put Mexico, Jamaica, Trinidad, and Nassau in that category. I have been to these places many times and other than being hassled by overzealous merchants and some beggars, it has been trouble free. Look at Aruba - nice, scenic, calm - and then Natalee Hollaway. So it is all around you and the phrase "it can't happen here" does not apply.