e3300eb16b6f8e5bae9c229bc9332b8b9 October 2013Last updated at 10:30 GMT A train trip through the UK's industrial past

Their livelihoods depend on the success of the company - and they know from bitter experience that when the factory makes fewer cars, jobs will go.

In particular, the agency said that Iran had refused Nackaerts access to the Parchin military site near Tehran where a major IAEA report in November alleged Iran had conducted suspicious explosives tests in a large metal container.

Some Fed officials have indicated they are ready to scale back their stimulus, but others have been less committal, making it hard to discern where the consensus on the policymaking Federal Open Market Committee lies.

Hopkins says that controlling rovers in almost-real-time would revolutionise Mars exploration. "What you might do for the first Mars missions is have the astronauts orbit Mars and land on one of its tiny moons Phobos or Deimos and from there they can control rovers on the Martian surface," he explains. "The people who operate the rovers on Mars today talk about the fact that a professional geologist could do in one minute what it takes a rover a day to do, so you explore much more effectively if you got rid of that huge time delay."