E-Coli is an electrical bacteria. A way to stimulate its natural ability can have many applications of both a positive and negative kind. Perhaps, its electrical output could provide emergency power during a blackout, which wouldn't create a strain on the nations power grids. However, in the case of its misuse, there should be a way to block E-Coli's artificial source of stimilation. (Any technology, no matter how benevolent, can be potentially twisted into something harmful. So, a way should always be created to counteract it.)