The commercial pipeline is clogged. Every year, this supply chain brings $1 trillion worth of toys, clothing, electronics and furniture from Asia to the United States. And right now, no one knows how to unclog it. 

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For months, consumers have confronted shortages of goods such as clothing, toys, groceries and cars. And those shortages aren’t going away any time soon. 

Reporter David J. Lynch visited the ports of Southern California— where giant container ships are waiting up to two weeks to unload their berth – and several of the country’s crammed rail yards and warehouses to figure out what’s clogging the global supply chain.

Correction: A previous version of this episode description incorrectly stated where the reporter visited. He visited ports in Southern California, not shipyards.

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