Strait of Hormuz: Open, closed, open, closed - What's actually happening?

The confusion around the Strait of Hormuz continues at pace. Having opened the straight on Friday for commercial vessels, Iran has moved to close the crucial channel once again. Tehran has accused the United States of "piracy" and added that any ship approaching the straights will now be targetted, until the US blockade is over. Jean-Emile Jammine speaks to International Affairs Editor, Andrew Hil