From the New York Times, I'm Sabrina Tevernice and this is The Daily.

Tonight, growing concerns as more and more top secret classified Pentagon documents

are being discovered posted on social media.

A week ago, the world discovered that dozens of classified documents from the American

government had been leaked online.

It is a mystery who leaked a trove of classified and top secret documents about the war in Ukraine.

The Pentagon says the leaked materials pose a serious risk to security.

They included highly sensitive information about the war in Ukraine.

The leaked documents expose the United States for spying not just on its adversaries, but also its allies.

And in the days since, there's been fallout and damaging revelations about American spying.

Very interesting how these documents have specifically emerged just at a time of high inspeculation

as to when Ukraine's counteroffensive may begin.

Today, my colleague, David Sanger, tells us what we're learning from the leak and what it might mean for the future of the war.

It's Thursday, April 13th.

So, David, it's not every day that we have a leak of confidential documents from inside the US government,

and particularly in the middle of a war, the war in Ukraine, what did you think when you heard about these documents?

Well, Sabrina, the first thing that came to my mind was the long list of other leaks in US history,

frequently involving wars or intelligence.

So, you know, the mother of all these leaks was the Pentagon papers.

That was in the early 1970s, and that was a history of the Vietnam War that the Pentagon had put together

and that Daniel Ellsberg turned over to the New York Times.

But more recently, there were the Wiki leaks in 2010.

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