As depressing as it is to see an American icon come this close to collapse, is it really any surprise? While the world kept turning, Netflix kept reinventing itself and movies found their way onto the internets (legally), Blockbuster sat still and that's putting things nicely. Sure, it tried the whole movie set-top-box thing, but no on will argue that it went about things the wrong way. In a recent SEC filing, the company made perfectly clear that there was serious risk that it wouldn't be able to refinance its crushing debt load in order to sta