That is a great photo! Every time I see it I call it "The Albert Gore Firearms Safety Course."
An alternate caption is: "Hey! Where's the shift key on this thing?"
you know the magazine clip isnt in the rifle, right?
There's no mag in the weapon and the bolt may be open (we can't tell from this angle). If so, the weapon is safe to adjust the sling, which is what he appears to be doing.
It's a funny pic, but not exactly an indictment of Algore. We've got plenty of those, anyway.