It seems to me as if Usman is in shock, because he obviously knows about the brutality of the Taliban and about the Islamic State murderers, so he can see how they are stamping their authority with their guns and bombs. If we tried to go over to Syria or Iraq to discuss the Quran with them, then they would fill us with bullets, cut us to pieces or blow us up, which of course then makes them think that they are strong. Now poor old Usman is in England and thinks that he can bring that strength to here with words, because of how genuine the Islamic faith is, but he is now finding out that he has just been fed some lies, so he now has to run away when he is faced with some proper arguments. I would dare any of those Islamic State murderers to come over to Speakers Corner and try to convince us about how genuine Islam is, by only using words.