By Carlos Sánchez Rangel To speak of San Miguel de Allende is to speak of tourism. Since its resurgence in the 1940s, the town has been inextricably linked to the arrival of travelers who fall in love with its narrow streets, colorful houses, and colonial atmosphere. Yet lately, the local community has been talking about fewer tourists on the streets, hotels that aren't filling up, and empty restaurants. Meanwhile, the municipal administration has announced that San Miguel—in