But, remember when River emptied her revolver at the astronaut as it was leaving? After the bullets ran out, she mumbles: "...of course not..." That can be taken as "Of course regular bullets won't hurt this thing" (which is how I took it to begin with) OR it can be taken "Of course that didn't work because I remember it not working when I was the one killing him". Either way, I think her memory is so fucked she couldn't remember even being in that suit in her first life as a child.

BTW, here's the finale poster...



Rory's coming for your ass!!

BTW, I think those patches they are wearing actually allow them to see The Silence and not forget them. That's why Kovarian wears one all the time...