Fast and Furious. Conceal and carry. The Dark Knight theater shootings. In America these days, it seems like everyone is packing heat. In fact, we're the most heavily armed populace on the planet. So where do most of us go when we need a shiny new Glock or a convenient AK-47? Increasingly to mega-shops like Sprague's Sports in Yuma, Arizona. That's where Jeanne Marie Laskas ventured recently, spending a few shifts behind the counter and seeing for herself how we shop, sell, justify, and even come to love the deadliest things among us.