For those of you who weren't able to see Joss live at Comic-Con, here is the video of his panel. It's Joss at his best: funny, serious, and answering questions - most of which were thoughtful. When he is asked about strong women characters, I'm afraid my friends and I (sitting in the front row) laughed very loudly and it was one of my friends who yelled out "YouTube", which Joss then carried on with.
