Do these 12 year old tires have any wear left in them?

Dear Car Talk | May 01, 1995
Dear Tom and Ray:
John
TOM: Probably. As long as there's no cracking on the sidewalls or tread, they're probably OK. Tires can dry out and crack over time, and that can make them more prone to failure.
RAY: If you're not sure, take the car to a mechanic and ask him to take a look. And if there are cracks in the tires, tell mom to get a set of new ones.
TOM: And if she refuses, make sure her insurance policy is paid up.
RAY: Tommy!
John
TOM: Probably. As long as there's no cracking on the sidewalls or tread, they're probably OK. Tires can dry out and crack over time, and that can make them more prone to failure.
RAY: If you're not sure, take the car to a mechanic and ask him to take a look. And if there are cracks in the tires, tell mom to get a set of new ones.
TOM: And if she refuses, make sure her insurance policy is paid up.
RAY: Tommy!
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