昆西國家事務責任政治研究所執行副總裁特里塔·帕爾西當地時間週一表示，特朗普多次升級對伊朗的軍事行動威脅，隨後又取消攻擊計劃，這種反覆行爲已經損害了雙方通過談判解決戰爭的可能性，“這已經變成了一種令人厭倦的模式。如果這種情況持續下去，最終所有談判信譽都將喪失。人們會質疑協議是否真的能夠得到遵守，也會質疑任何提出的激勵措施是否可信。當然，對威脅本身的可信度也會受到削弱。”

cenc automatic determination: at 10:25 on Aug 4 a preliminary magnitude ~3.3 earthquake occurred near Gaoxian, Yibin, Sichuan (28.53°N, 104.67°E). Final magnitude will be confirmed in the official rapid report.

President Trump called the first coordinated US–Japan yen purchases in decades a “signal of friendship.” Treasury Secretary Bessent said the Trump administration will “deliver on commitments to trusted partners.” Analysts warn Washington’s intervention is unlikely to be free: they say support for the yen — lifted from near 40‑year lows — may be tied to US strategic aims including bolstering Prime Minister TAKAICHI amid weak polls, pressing Japan to follow through on a previously pledged $550bn investment package into the US and to yield more in trade talks. Bessent has voiced worry about spillovers to the $31trn US Treasury market; he has identified the 10‑year yield as his key gauge, and the 10‑year yield hit the highest level of his tenure on Friday, the same day as the yen intervention.