barry eichengreen was on bloomberg radio early this week. tom: this is a brilliant, brilliant essay, where barry eichengreen folds in lawrence summers of harvard. cannot convey enough, this is the must-read to get the weekend started. facebook, 12,000 jobs, dow chemical, 53,000 jobs. it does not compute. a lot of people are going to be out of work. martin: i agree with that, and i think technology -- there is a big question mark whether technology adds or subtracts from employment. admit it, buto one of the competitive channels a few months ago -- tom: excuse me -- a 3-d print of a sports car took 12 hours. everything was 3-d printed except for the wheels and the seats. so when you think about that and the impact of 3-d printing and robotics is having on there is a, reduction in employment in the longer term. tom: i have been talking about united kingdom, what daniel yergin talked about for two hours. with martin sorrell, we have time left over. francine lacqua wants to talk about heathrow. we are going to do that. our major airports, whethe