Toxic Chinese Drywall

As reported by Greg Allen from NPR

Between 2004 and 2007, an estimated 100,000 homes in more than 20 states (including California) were built with toxic drywall imported from China. Emissions from the drywall corrode plumbing and electrical systems. Homeowners also blame them for headaches and respiratory ailments.

Here is a video on how to detect the toxic product.