Why would a federal agency trash its libraries?

http://www.hcn.org/servlets/hcn.WOTRArticle?article_id=16964

"The closures started during the last few months of the Republican-controlled Congress when budgetary oversight was not high on the agenda. Aside from its claim of fiscal austerity, EPA said the closures were part of an effort to “modernize” its information systems by digitizing thousands of documents, page-by-page. In the meantime, whole collections are now inaccessible to both agency and outside researchers."