Amazon's reported grocery plans could redefine what a 'store' is (AMZN)

Amazon is looking to expand its foothold in the grocery arena, according to The Wall Street Journal. The report knocked down shares of grocery stores like Kroger, and it has implications not only for traditional grocers but for consumers. Morgan Stanley analysts expect this push, if it comes to pass, "to change consumers' in-store shopping experiences and expectations" and "re-define what a 'store' is." Watch Amazon trade live. Any investor could guess that a push into the grocery-store...