Here's a novel idea, segment your database, put strict limits on those who use it, only allow normal people access, i.e., patriotic people with normal lifestyles.
If we see any military personel dancing to Lady Gaga, shoot them too.
Manning yes. But before you get to Assange, there's a huge list of folks in our 'security' establishment that needed to be punished for incompetence and/or malfeasance.
Letting 3.5 million folks have access to this stuff was beyond stupid. It's like removing the compartmentalization of information at our nuke labs and letting the secrets walk out the door. It's so stupid to do this that it suggests intent.
This low level stuff is mostly embarrassing, but it's likely the same ideas were implemented for the higher classifications, that is they were made available to a much wider audience than before. If so, we have much larger fish to find and fry than Mr Assange.
Mr Assange could have been the type to sell this to Moscow (though I'm betting they already had it). But he did the one thing that is likely to get the problem solved. He published it where everybody could see it.
Get after them! (I’ll watch from under cover)