Only on the "CBS This Morning" podcast, "CBS This Morning" co-host Norah O'Donnell talks with Boston Marathon bombing survivor Adrianne Haslet who, three years after losing her leg in the terrorist attack, completed the marathon herself. Last month, Haslet was hit by a car, preventing her from competing in this year's race, which will take place on the sixth anniversary of the bombing. Haslet talks about the mantra that keeps her moving forward, how she channels her anger into her recovery and her determination to continue running despite the obstacles.