The assessment is based on strong, consistent, and direct evidence from highly authoritative sources. A primary news report from Reuters explicitly and directly quotes the Japanese Finance Minister stating that Tokyo would take action against excessive currency volatility, which perfectly matches the claim. This direct evidence is further strengthened by two other corroborating reports from the same reputable news organization. These articles, while focusing on broader market analysis, independently reference and confirm the finance minister's specific warning. There is no contradictory evidence among the provided sources. The combination of a direct primary source report and multiple consistent, corroborating accounts makes it highly probable that the statement is true.