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Pompeo dismisses Iran's claim it arrested 17 CIA spies

Pompeo dismisses Iran's claim it arrested 17 CIA spies
Secretary of State Mike Pompeo is dismissing Iranian reports that Iran busted a CIA spy network and arrested 17 people. This comes amid rising tensions after Iran seized a British-flagged oil tanker near the Strait of Hormuz last week. CBS News foreign correspondent Imtiaz Tyab joins CBSN to break down the latest.