According to CoinMeta, as reported by Japanese sources on the 11th, in regards to revising the "Three Security Documents" within this year, the Japanese government has begun to consider adding exceptions to the principle of "no import of nuclear weapons" within the "Three Non-Nuclear Principles." This means that if the Japanese government determines that it is necessary for U.S. ships carrying nuclear weapons to dock in Japan in order to ensure national security, then such imports of nuclear weapons may be exceptionally permitted.