Video appears to show Ohio train on fire 20 miles before derailing
Footage captured by a security camera appears to show the Ohio train that derailed earlier this month was on fire 20 miles before reaching the site where it burst into a toxic fireball. Erica Mokay, a reporter for CBS News Pittsburgh station KDKA-TV, joins Tony Dokoupil and Lilia Luciano to discuss the new questions raised by the alarming footage.