>>tyrrell: a good example is bond street. bond st tube station isn't even on bond st, you end up on oxford st. >>reporter: and people also end up on the tube for no reason... >>graaf: what happens is that actually people do go underground to make journeys when there's no point going underground for. >>reporter: getting people off the underground won't only mean shops will see more customers, but it will also help fight obesity, is environmentally friendly, and will take pressure off the transport system...all that will save the city money...because whether out on the street, or inside the store, when way finding is done well...it most certainly works.... >>smith: certain areas of the store have certainly seen massive increases. and what we're finding is people dwelling in the store and actually buying more. >>jong: dwelling a lot longer, a few minutes longer? >>smith: a lot longer. >>tyrrell: we've had nothing but positive feedback to date with this scheme. >>reporter: and in a city where people make 15 million trips every da

. >> thank you, i actually read your book and reviewed it for bob tyrrell's american spectator. it is an excellent book. there are a couple problems, and this is what you need to take into congress to be able to answer in doing this and i am sympathetic to your point of view that we need to do something. one of them is on missile defense, the kind of missile defense you need to knock down something coming off of a freighter is not the same as shooting a ballistic missile fired from north korea headed toward hawaii. the system we have now deals with the north korean event but something like the airborne laser, which is very far along development and has been cut in half in the proposed defense budget. the obama administration is precisely to have the kind of administration that would give you an opportunity to have -- cover a large area. if you don't do it then, the missile also, if it is headed 300 miles and going up like this, it will be a sending all the way, an entirely different kind of interception problem. the systems we have now are not designed to do that. two other quic