Water licenses in a drought

I visited the Sydney Water Catchment authority today to meet with my good friends Serena Joyner, a keen KMer and network fan and Lea Rosser, a research colleague and now new GM of Coporate services. We got to talking about our board interlock and media ownership maps and the topic of water licenses came up as another prospective area of ownership mapping. What prompted the discussion is the recent news that Macquarie Bank are buying up water licenses from farmers. Macquarie have been astutely acquiring Australian infrastructure like toll ways, airports and are currently bidding for QANTAS.....they figure prominantly in our board interlocks and media ownership maps...now water...what next?