Libraries have influence over international relations. If that statement surprises you, take a look at this news article about a recent proposed change to a subject heading by the Library of Congress:

Korean Librarian Halts Library of Congress Move on Dokdo
http://english.chosun.com/w21data/html/news/200807/200807170008.html

Here is the link to the LC Subject Headings Tentative (Unapproved) Weekly List 29, dated July 16, 2008: http://www.loc.gov/catdir/pcc/tentative/twls0829.html