Senator Marco Rubio has cautioned that Iran imposing tolls on vessels passing through the Strait of Hormuz could trigger a wider disruption of global trade. He argued that such a move would not be limited to that crucial waterway and could “spread like contagion” to others. This warning follows recent Iranian threats to restrict passage through the strait, a vital chokepoint for oil and other goods. Secretary of State Antony Blinken affirmed the US position that international waterways are not the property of any single nation. The potential for increased shipping costs and supply chain issues is a key concern stemming from the escalating tensions. Rubio’s statement underscores the US’s worry that Iran’s actions could destabilize international commerce and security.