Logistics.
I would love to see for one hamburger all the path of the meat, from the cow to the slaughterhouse, where was stored, processed, how long was it transported and where from, basically all the bath from it's start until getting onto my table. And same for all the ingredients.
It would be a world more fair about what their are selling to us.
I like this a lot. This is an excellent example, and I really want to see this sort of thing implemented for logistics. If I recall correctly, there's a clothing company or two already attempting this- I believe that this is a trend that will catch on, and one that will become in demand.
It will allow both government and consumer the power to keep companies accountable for their sustainability practices in business.