How Delhi residents are coping with dangerously high air pollution

Doctors say that right now, breathing Delhi's air is like smoking dozens of cigarettes each day as pollution levels have reached 50 times the safe limit, according to the World Health Organization. The dense smog that shrouds the city this time of year takes a toll on residents, both physically and mentally. Reporter Sushmita Pathak is there now; she explains what causes the annual air quality crisis, and what stands in the way of solutions.