Bringing gas supplies in from the cold, the task facing the former spy

It is teatime in the Swiss lakeside town of Zug. Matthias Warnig blushes crimson and shuffles in his chair.

Nord Stream received one of the final construction permits required, from the Danish Government, this month and construction could start as early as the spring.

Once built in 2011, the 1,200km pipeline will pump 55 billion cubic meters of gas every year