The radioisotope supply chain is fragile due to the short shelf life & limited number of suppliers. The U.S. sources 80% abroad. Tariffs threaten supply chains & increase costs for life saving treatments & equipment the U.S could use to develop domestically.

https://healthimaging.com/topics/medical-imaging/nuclear-medicine/tariffs-will-have-significant-impact-nuclear-imaging-supply-chain-us