He estimates that 3M makes 65, 000 products, ranging from Scotch tape to film for solar-energy panels, dental braces and dog chews.

WSJ: 3M Begins Untangling Its 'Hairballs'

In a forthcoming book, Taming The Beloved Beast: How Medical Technology Costs Are Destroying Our Healthcare System, Callahan compares this to having a dog who chews the carpet, pees on the floor and knocks over the guests.

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