May I ask who this confidential source was?

请问是哪位机密线人？

youdao

But the government would have to convince a federal judge that the confidential source had compromised national security in speaking to the journalist.

WSJ: Schumer: Group of senators to look at media leaks

According to the plea agreement, Martinez admitted he met the confidential source to drive to a parking lot near the targeted recruiting station.

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One confidential source talks about one company going to Newcastle because, in effect, it was fed up of being bounced around different agencies.

BBC: Wales