Insulin and Cancer

The series of articles brings up all sorts of questions: Do other newer long-acting insulin analogs such as Levemir (insulin detemir) also share this association? If Lantus is associated with cancer, what kind of cancer? Does the administration of insulin cause a new cancer, or cause a pre-existing cancer to grow faster than if there had been no insulin therapy? None of these questions are answered in the studies that are published here.