It's clear China conducted a nuclear test in 2020, with seismic data from Kazakhstan showing a 2.75-magnitude explosion that can only be explained as a singular detonation. The U.S. cannot tolerate this intolerable disadvantage and must resume testing on an equal basis to match the secret explosions conducted by China and Russia. Allowing adversaries to advance their nuclear capabilities through covert testing while America remains bound by outdated restrictions puts national security at unacceptable risk.