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Trump's trade crackdown blocks Canadian yarn seller

The seller had done everything right, according to experts, but she was still sent home — it's just one of an increasing number of stories of problems at the border amid tougher U.S. policies.
The seller had done everything right, according to experts, but she was still sent home — it's just one of an increasing number of stories of problems at the border amid tougher U.S. policies. 5:16