Following the US pulled from the worldwide nuclear agreement with Iran, Tehran states it won’t negotiate another cope with Washington.

And, there’s been a degeneration in relations between your US and Iran since April, once the US ended sanctions exemptions, effectively banning all Iranian oil exports.

Iran has threatened when its oil exports are stopped, then no oil can pass the Strait of Hormuz. But, how can this be strait essential and just how could this story affect you? Parizad Nobakht from BBC World Service explains.

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