UL-approved smoke alarms may give false sense of security

The worlds leading testing and safety organization puts its seal of approval on millions of smoke alarms that may not work in a deadly fire. So why does Underwriters Laboratories endorse smoke detectors that often remain silent in a room full of smoke? WTHR shows you why these UL-approved smoke alarms may give you and your family a false sense of security. Note: This story first aired on WTHR-TV in Indianapolis in July 2007.

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