Discusses the growing problem of theft of library materials, including rare books, by both scholarly researchers and library staff. Complacence of librarians and their failure to act in the past is also discussed, as well as the effects of tightened security measures on the traditional trust between librarians and researchers. (CLB)

The Librarian of Congress addresses the increasing security threats to the collection at the Library of Congress that caused him to close library stacks, increase police patrol, install surveillance cameras and alarm systems, create material inventories, and limit patron privileges. Many of the security functions are being assessed and monitored…