Via slashdot.org:
An article in Federal Computer Week came out Monday that announced The Rand Corporation has published a report (sponsored by the National Geospatial-Intelligence Agency) concerning the threat that publicly available geospatial data on US Government web sites might pose in the hands of terrorists that 'found that less than one percent of the 629 federal data sets they studied appeared to have notable value to would-be attackers', according to the report titled: Mapping the Risks:Assessing the Homeland Security Implications of Publicly Available Geospatial Information. A curious 'finding' from page xxv of the summary not mentioned in the article states: 'However, we cannot conclude that publicly accessible federal geospatial information provides no special benefit to the attacker. Neither can we conclude that it would benefit the attacker.'