America is under assault. While almost everyone is concentrating on the trade dispute between the United States and China, I am on a different course. I am focusing on what the nations in the European Union, Switzerland and Japan are doing by promoting negative yielding debt that now exceeds $14.1 trillion, and is expanding daily. The value of bonds yielding less than Zero now makes up more than a quarter of the entire investment-grade market, the data shows. This sub-Zero debt comprises 25.68% of the Bloomberg Barclays Global Aggregate Index, a gauge which includes government,