Much ado has been made about U.S. President Donald Trump’s open-armed embrace of crypto. One theory is that the White House’s friendliness toward digital assets is a favor to Silicon Valley donors, a gesture to innovation-friendly constituencies. Another is that it reflects an administrative belief in the efficiency gains that blockchain can bring to payments. Both explanations may hold some truth. But they miss a more pressing, and under-analyzed, reason: America has a debt problem. And the challenge isn ...