It's no longer a secret that Volkswagen's management was aware of the company's shady diesel emissions practices. Now, however, it's evident that this awareness included some of the car maker's top brass. American group CEO Michael Horn states that he was told of a "possible emissions non-compliance" in spring 2014, or significantly earlier than US execs had hinted at so far. Staff had supposedly told him that engineers would work with the Environmental Protection Agency to fix the problem. Clearly, that didn't happen before word of the scandal got out.