Senator JOHNSTON (Western Australia—Minister for Defence) (14:17): It is a bit like the NBN. He is an expert—but he really isn't. The Japanese submarine has a reserve buoyancy of 21 per cent. It is double hulled and has three extensive watertight compartments. The Collins class submarine has a reserve buoyancy of about nine per cent—it is right on the edge of safety. The Japanese submarine is a deep-diving submarine. The Japanese submarine travels faster than a Collins. The Japanese submarine is a very good submarine, as is the German submarine, the 214, and as is the Scorpene, the French submarine. Enhanced buoyancy is actually a very positive thing when you are 300 metres below the surface. Opposition senators interjecting— Senator JOHNSTON: Look at the track record of Senator Conroy on the NBN. We have just solved that today. How is he looking now? He is an expert—but he really isn't. (Time expired)