We, as a nation, have three questions that we must answer in order to proceed optimally into the future, according to Matthew Slaughter, of Dartmouth‘s Tuck School of Business, and David Wessel, of Brookings‘ Hutchins Center on Fiscal & Monetary Policy. They’re largely correct, but they miss one Critical Item without which our path into a prosperous and growing future would be severely constrained, if not blocked altogether.

In their question regarding “walls or bridges,” the two argue against walls—tariffs—and for trade globalization as the path to prosperity via competition and its heavily encouraged innovation rates that such free trade creates.

[R]esearch has long shown that globally engaged companies tend to create the good jobs at good wages for which so many Americans are yearning. In 2023, the US parent companies of US-based multinational companies paid their 29.9 million workers in America an average total compensation of $97,078—about 20% above the average in the rest of the private sector.

They didn’t address, though, the downside of their largely unfettered free trade regime. That downside was amply illustrated by the recent Wuhan Virus situation, during which our dependence on the People’s Republic of China’s medicines—and not just for Virus medical supplies, but also for over the counter pain killers and anti-inflammatories, even a variety of flu medicines—was exposed, along with the world’s dependence on the PRC even for simple things like face masks.

The downside was graphically demonstrated much more recently by the PRC’s control over rare earths, from ore through processed rare earths to finished products, and its use of that control to throttle their export and thereby threaten our economy and that of Japan’s.

The Critical Item is this tradeoff. Carry out free trade globalization; it is valuable, but do it within this framework. There are a few items that are critical to our national security and to our economy (there is a lot of overlap between them): those rare earths, the raw materials for medicines. For these, we need to have our own supply paths, wholly contained within our borders, that stretch from dirt in the ground through final product deliverable to the domestic end user. These nationally-contained supply lines need not be the only sources for these materials; it’d be sufficient for them to be in place, actively used, and able to be rapidly expanded during periods when overseas sources become constrained.

That tradeoff will be expensive, but that cost is simply—and necessarily—a cost of maintaining our national security, our ability to defend ourselves, whether militarily or economically. The cost of being unable to will be far greater, and not only fiscally.