The White House had publicly distanced itself on whether it would do the same to an American news organisation.
The Guardian newspaper, responding to threats from the British government in July 2013, destroyed the data roughly a month after it and other media outlets first published details from the top secret documents leaked by former NSA contractor Edward Snowden.
After news of the Guardian incident broke the following month, White House spokesman Josh Earnest said it would be "very difficult to imagine a scenario in which that would be appropriate."
The NSA emails, obtained by The Associated Press under the Freedom of Information Act, showed that senior intelligence officials were notified of Britain's intent to retrieve the Snowden documents and that one senior US official appeared to praise the effort.
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"Good news, at least on this front," the current NSA deputy director, Richard Ledgett, said at the end of a short, censored email to then-NSA director Gen Keith Alexander and others.
The subject of that July 19, 2013, email was: "Guardian data being destroyed." A paragraph before Ledgett's comment was blacked out by censors, and the NSA declined to answer questions about the documents.
The Guardian's hard drives were destroyed the day after Ledgett's email. Top editor Alan Rusbridger made the decision after a week of increasingly blunt threats from British officials.
A senior aide to British Prime Minister David Cameron even warned that Rusbridger's nearly 200-year-old newspaper faced closure unless the documents were destroyed.
In a statement to the AP, the Guardian said it was disappointed to learn that "cross-Atlantic conversations were taking place at the very highest levels of government ahead of the bizarre destruction of journalistic material that took place in the Guardian's basement last July.