Why iconic American brands fail or endure

The shelf life of Twinkies, and its maker Hostess, may or may not be forever

Rebecca Jarvis took a look at some other familiar brands that are also in trouble, from Kodak to Sears.

While some struggle, other iconic American companies are flourishing through the ages, their brands seemingly ageless.

So why are some companies facing trouble with today's consumers while others endure? Check out why in Jarvis' full report in the video player above.