From someone who knows about such crimes:
So Sandy Berger committed a crime. The factual account reveals it to be sad and pathetic the same way it is when anyone steals from the National Archives or any special collections library. It also shows that, despite his attorney’s later protestations to the contrary, Berger’s crime was not in any way an aberration; it was well-considered, thought out and quite deliberate.
What I get to now is whether the punishment is appropriate in light of other sentences for other recent Archives documents thieves, notably Howard Harner and Shawn Aubitz. (Again, my personal answer is that Berger’s punishment certainly isn’t appropriate. But I’ll only deal with this as a question of “appropriate” within the constraints of the current federal criminal system relating to these types of thieves.)