Why didn't Ford, Firestone, and the NHTSA discover the nature and seriousness of the tread separation, product-liability

Question:

Why didn't Ford, Firestone, and the NHTSA discover the nature and seriousness of the tread separation, product-liability problem earlier?
Fantastic news! We've Found the answer you've been seeking!

Step by Step Answer:

Related Book For  book-img-for-question
Question Posted: