I know what you mean. Mexico does seem to dominate the headlines often about some decapitated heads found stacked near acid barrels in Juarez. I wouldn't let the tourist thing bother me too much, especially around Cabo, Cancun, Cozumel resorts. I'd say to get caught up in a crossfire in those resorts the chances are quite slim. Maybe a bit higher around Acapulco but that's a city of lots of population in comparison to the rest of the resorts.