The fluorescent lights of the grocery store buzz faintly overhead, casting a washed-out glow across polished floors and overstocked shelves. Tina pushes her cart slowly, one hand steadying the handle while the other fidgets with a shopping list scrawled on the back of an envelope. The cart is heavier than it looks. Not from food, but from the four bundled babies tucked securely into the seats and carriers. They’re quiet for now, lulled by the rhythm of movement and the occasional rustle of packa...