He undertook increasingly dangerous assignments until his exposure as a spy.

在间谍身份暴露之前他一直从事日益危险的任务。

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And just to give you some sense, these guys are going out on helicopter raids at night with very little support and carrying out extremely dangerous assignments each and every day.

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On Sunday, Goldstein told CNN that Pearl was an "extremely cautious reporter" who had turned down assignments he deemed too risky and would never would have knowingly placed himself in a dangerous situation to get a story.

CNN: Report: Suspect says Pearl killing part of larger plot