You can check this article in the NY Times Jan 5th.
Parks Agency Leaves Controversial Book on Shelf
January 5, 2007, Friday
By CORNELIA DEAN (NYT); National Desk
Late Edition - Final, Section A, Page 14, Column 2, 561 words
Also if you just actually read the article on the PEER website they have a link to the FOIA request reply from Interior that states they have no information, meaning they have not conducted any internal review of the policy. It's not so hard if you just read it.
It was also reported in Nature, the LA Times, etc.