separate studies said lifetime risk of obesity is established by age 5. it's the fourth anniversary of first lady michele obama's let's move initiative combat childhood obesity. she now wants new rules on food advertisements in schools. later this hour i'll talk with a doctor who specializes in obesity prevention. general motors is expanding its recall over a deadly safety problem that can cause cars to abruptly shut off while be driven. the automaker says nearly 1.4 million vehicles may be affected and it's linking 13 deaths to that problem. christine romans is in new york with more on this. good morning. >> reporter: carol, this is a much bigger recall than gm first announced, about double and, in fact, this was deadlier. this problem in this vehicle deadlier than gm first told us. 13 deaths directly linked to this ignition switch problem. it could be something as simple as having a heavy key chain that as it jangles the ignition switch pops from run to accessory mode, the car stops