We've all seen the coupons and advertisements promoting "whole neighborhood air duct cleaning for $49.95," and heard the horror stories from consumers who .
We've all seen the coupons and advertisements promoting whole neighborhood air duct cleaning for $49.95, and heard the horror stories from consumers who .
MSNBC's Chris Hanson uses hidden camera's to catch a local air duct cleaning company in the action. There goal is to uncover "Bait and Switch" tactics that are .
Dateline's "The Hansen Files" get heated when Chris Hansen confronts a man for buying what he thought was a stolen bike. » Subscribe to NBC News: .
