Michael Tobis has written an overview of the Hockey Stick story. It's frankly not desperately interesting, reiterating some standard Hockey Team positions without addressing criticisms of them. I thought that this bit was worthy of comment though (emphasis in original):
4) Scientific tradition as it currently stands does not require publication of data. This is a consequence of a competitive environment which traces to the idea that science should run “more like a business”. Expensive data may be collected in an expectation that a given lab’s ownership of the data may give it a competitive advantage in later grant competitions. Although this is an unfortunate turn of the scientific culture, Steve McIntyre seeks to overturn it retroactively by harassment.
This is fine, so long as you are happy for that data not to be used to inform public policy.