LACEY TOWNSHIP, N.J. (AP) — The nation's oldest operating nuclear plant plans to test its emergency sirens next week. Tuesday's test by the Oyster Creek plant is part of a twice-yearly safety drill. A similar test was staged in June, shortly after the plant's parent company had replaced all 42 emergency warning sirens in the 10-mile radius around the Lacey Township plant.Read more on NewsOK.com