In the shadow of a NATO summit and a fragile peace with Tehran, Israel delivered urgent warnings to Washington of Iranian plots against Donald Trump's life — warnings specific enough to alter presidential travel plans, yet unverifiable enough to leave American intelligence agencies in quiet doubt. The episode surfaces an ancient dilemma of alliance: how much trust one nation places in another's eyes, and what happens when those eyes may serve more than one purpose. That the Secret Service moved a sitting president between aircraft based on intelligence its own agencies could not confirm speaks