The news on uranium mine closures seems to be coming regularly now. Last week, I wrote about major producer Cameco delaying its Millennium mine in Saskatchewan. And this week we got news of another high-profile producer that's being lost to the market.

Publicom will not see the light of day. The $35 bn merger of ad agencies Publicis and Omnicom has been cancelled. The idea that bigger is better in the advertising business seems to me to have been misguided from the start.