You know smoking can be hazardous to your health. Then came 'second-hand smoke.' Now, health researchers are cautioning about 'third-hand smoke' -- residues from smoking that linger on surfaces. The toxins, including heavy metals and carcinogens, can attach easily to hair or clothing, and be passed on to children long after the actual smoke has cleared. We'll talk about the risks, and what can be done to avert them.
Produced by Annette Heist, Senior Producer