Trains at Washington (USA) - A Trains@ special

It's been a while, but Trains@ is back - this time with a special video all the way from Washington, USA! This episode features a look at some of the rolling stock in use on the Metro system in the capital city of the United States, from the brand-new Kawasaki 7000 units to the venerable Breda 2000 & 3000 classes dating from the 1980s.