This week saw the LME training courses returning to Dubai, where plenty of air-conditioning and lowered blinds kept the training room protected from the soaring temperatures outside. As always, the cross-section of the physical market and different nationalities lent additional interest to the few days.   The cable industry was particularly well represented, and their input helped as we unfurled and untangled the inner workings of the LME.  The relaxation of Iranian sanctions meant we heard almost as much Farsi as Arabic during the coffee and lunch breaks.