Cargo ship in Los Angeles port
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US port dispute delays Asia supplies

What do Christmas trees and French fries have in common? Well, both have been in short supply across Asia because of a three month backlog at 29 ports on the west coast of America.

The dispute over pay and conditions has gone on for longer than anyone anticipated.

The world's biggest delivery firm - FedEx - said a go-slow by workers has caused the delay in moving goods to Asia. But, unions accuse port bosses of scaremongering.

The BBC's Alistair Leithhead reports.

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