gretchen: star of star usher nearly drowned after his arm got caught in a pool drain. his aunts frantically called 911. what s the status of your emergency? i have my nephew was in the pool and he went in. i couldn t get him. i couldn t get him. i tried to get him. and they got him out and doing cpr on him. gretchen: any parent listening to that is shuttering. two men working at the house saved the young boy. the pool drains are notoriously dangerous. look how the suction holds down this big ball on your screen. what can parents do then to make sure their pool or the neighborhood pool is safe? alan is the executive director at a foundation dedicated to pool safety. good to see you. good morning, gretchen. gretchen: we had a case like this in the town that i live in in connecticut and the little boy passed away and it s a