The world premiere of “La Ruta” at the Steppenwolf Theater, Chicago by playwright Isaac Gomez who has figuratively commandeered a bus transporting “maquila” workers to and from their jobs in Juarez, then pointed its headlights into the vast darkness exposing the despair and anguish of the mothers and sisters of hundreds of young women kidnapped, used as sex slaves, murdered and disposed of in the Mexican desert.