Tonight Cnbc News Today

And technique from the middle ages to get their drugs across the border with a catapult. mexican officials seized that catapult and along with it 45 pounds of marijuana. its being called the largest and longest psychological experiment in human history. tonight cnbc is breaking down the business and the science between the stacking and placing of tens of thousands of items on your grocery store shelves. tyler matheson joins us with a preview of cnbcs supermarkets inc. inside 5i hundra $500 bil...