Foundation Cracks: Settling or Structural?

You found a crack. Maybe it is a thin line running down your basement wall, a stair-step zigzag in the brick, a web of lines across a brand-new concrete floor, or a sentence on your inspection report that ends with 'recommend evaluation by a structural engineer.' You posted photos online and got a hundred answers: it's nothing, it's just settling, run. Now you are lying awake wondering whether thi...