Hiding raw climate data

Why are they hiding the raw data? What don't they want us to see? [Link]

The chief British Climate Research Unit (CRU) at Hadley has begun to eliminate the daily temperature records from its public websites.
Yes — the daily high in London is now a state secret!
Actually, this disappearance of temperature records has been going on for some time — not only in Britain, but also in the United States. Why would American and British climate “scientists” not want outside scientists to see the raw data upon which their predictions of anthropogenic global warming (AGW) are based?
Why would Bernie Madoff not want outside accountants to see his day-to-day “earnings” data?
The raw temperature data is bad news for AGW. The United States Historical Climatology Network (USHCN) has in the past provided the raw data from the temperature-taking stations in the U.S. Here is a graph of their raw data: