Why should I make the data available to you?

"Why should I make the data available to you, when your aim is to try and find something wrong with it," Phil Jones, director of the Climate Research Unit at the U.K.'s East Anglia University, complained in 2005 when a fellow scientist inquired after the original data.

Hmmm. I thought one of the central tenants of the Scientific Process was what we now call "Peer Review?"