In a time of ecological, political and social crises, it isn’t easy to command attention. Yet, occasionally, a simple image can cut through the noise. Last week, a photo of two children outside a Taco Bell captured this disgraceful moment in California history. The students, seated on the sidewalk and hunched over a pair of laptops, weren’t deciding between a seven-layer burrito and a nacho supreme. Instead, they were trying to latch onto Taco Bell’s wireless network so they could get an educat...