Because he's a slob with an understandably sloppy desk!
Perfect example of the MSM's culpability in covering up for Dems. IN this case, they said "Oh well, that explains it!". If it had been a Republican, the chase would have been on to determine how the NATIONAL SECURITY ADVISOR's sloppy habits endangered national security in a time of war.
I believe the final consensus on Burglar was that he was removing the security assessment after X42 regime. They thought it would never see the light of day, but it was damning on the failures to connect the dots.
The bottom line is that the MSM in this country is overwhelmingly LIBERAL DEMOCRAT, and everything they do is built on that flimsy foundation. - Watching them contort themselves to rescue the floundering Clinton during his impeachment fiasco was a glaring example of what they are. Any liberal Democrat or RINO politician can expect the same favor from the MSM, and that is why we need other truly fair and unbiased outlets.
The fact is that "The Path to 9/11" and the few alarming truths it revealed was probably sanitized so much we would all be apoplectic if we really knew the whole story. My theory is that whoever was behind that was a liberal Democrat MSM'er who does not want Hillary Clinton elected President, plain and simple.