In the nearly four months since the Russian invasion of Ukraine, the United States has been giving officials in Kyiv a steady stream of intelligence to aid them in the fight.

But what is becoming clear is that the Ukrainians are not returning the favor.

Guest: Julian E. Barnes, a national security reporter for The New York Times covering the intelligence agencies.

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Background reading: 

• American intelligence agencies know far more about Russia’s military than about Ukraine’s war strategy, officials say.
• The outcome of battles for key cities in eastern Ukraine could prompt the country’s Western allies to start rethinking their goals.

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