US and Mexico discuss why so many children are arriving at the US border

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Senior Biden Administration officials have gone to Mexico City for urgent talks on ways to stem the flow of Central American migrants crossing into the US -- in particular unaccompanied children; how the big political standoff between China and the EU over Beijing's treatment of the Uighurs can become quite personal; and Egypt's Suez Canal has been blocked by a large container ship that ran aground in the narrow channel.