Jackie Northam

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The Trump administration hopes the sweeping sanctions it has imposed on Iran's oil, shipping and banking industries will cripple its economy and force it to negotiate a new nuclear deal.

But analysts point out that while such economic penalties can be persuasive, there are also ways to circumvent them.

"There will always be both overt and covert activities to work around sanctions, to dodge sanctions or evade them," says Dan Wager, a global sanctions expert at the consulting firm LexisNexis Risk Solutions. "That's something that's gone on for a very long time."

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There were fresh calls today for justice in the killing of Saudi journalist Jamal Khashoggi. They came from his friends in Washington and from the president of Turkey.

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A year ago, Chinese President Xi Jinping stood before the 19th Communist Party Congress and laid out his ambitious plan for China to become a world leader by 2025 in advanced technologies such as robotics, biotechnology and artificial intelligence.

It was seen as a direct challenge to U.S. leadership in advanced technology. James Lewis, a specialist in China and technology at the Center for Strategic and International Studies, says China recognizes that technological superiority helps give the United States an edge in national security and wants in on it.

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In early November, the U.S. will put more sanctions on sales of Iranian oil. Some of Iran's oil customers, such as China, may be undeterred, as NPR's Jackie Northam reports.

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