A recent travel warning by the US State Department has some tourists worried about the safety of Mexico travel. But as the warning points out, the areas of concern are not the beach resorts or historical cities that are the biggest tourist draws. The danger is highest in the border towns of Tijuana, Nogales, Ciudad Juarez, Nuevo Laredo, Monterrey and Matamoros. Mexico's tourist economy is fragile at the moment, and the US government doesn't want to do anything that might damage it.
Perhaps that's the reason why they have issued such a detailed alert this time, rather than the broad-brush approach they usually take in advising against travel to an entire country where there is a known health or safety risk. Millions of US citizens travel safely to Mexico each year, and in addition there are close to a million who live in various parts of that country.