David Welna

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Europe's largest joint military exercise since the end of the Cold War rumbled to a close on Friday in Poland. More than 30,000 troops from across the North Atlantic Treaty Organization were there to send a message to Russia.

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They are often called the "missing 28 pages," and while they are not exactly missing, they are back in the news again.

They are, more precisely, the final 28 pages of a massive 2002 congressional report on the Sept. 11 attacks that runs more than 850 pages. Those last few pages have never fully been made public and they deal with the highly sensitive question of foreign financing of the suicide hijackers who carried out those attacks.

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