as ever, is bbc qt and the text number is on screen.ve not seen screen. as ever, our guests have not seen the questions they are about to face and they draw lots to decide who is to begin. first, please welcome the leader of the liberal democrats, tim farron. good evening. good evening and thank you for joining us. let's get ourfirst question tonight from the audience. we are under attack if properly controlled, why is internet surveillance is not a good thing? controlled, why is internet surveillance is not a good thing7m can save lives. first of all, you, like everybody else would have been here last night the, of course we rightly postponed to pay tribute to those who died and remember those who passed away and to stand in solidarity with loved ones and all those injured and affected by the london attacks. you think about what you are going to say before you come ona you are going to say before you come on a programme like this, after an event as happened on saturday night and you remember yourself saying really similar things a fort