The US has launched new strikes on Iran targeting what it says is Tehran's ability to threaten shipping in the Strait of Hormuz. President Trump has declared the waterway open whil

The US has launched new strikes on Iran targeting what it says is Tehran's ability to threaten shipping in the Strait of Hormuz. President Trump has declared the waterway open while Iran insists it is closed leading to a further escalation of attacks. Heidi Zhou-Castro reports.