This was just sent to me....it's about a 10 minute excerpt from ABC's 20/20 about tires that are over 6 years of age that are being sold as new that have caused numerous traffic deaths due to tires that separated. These are tires that sit there, new never used that basically dry rot.
One of my front tires recently did on my 2005 Tahoe. The truck pulled hard right at any time I let go of the wheel until I got it into the shop. I thought it was my front end alignment. It shows you how you can tell by a code on your tires....
You might want to watch it and send it on to friends and loved ones....
http://abcnews.go.com/Video/playerIndex?id=4826897