Web site is provided as a public service.
Information presented on the NSHS site is considered public information and may be distributed or copied for non-commercial purposes. For site management, information is collected for statistical purposes. This government computer system uses software programs to create summary statistics, which are used for such purposes as assessing what information is of most and least interest, determining technical design specifications, and identifying system performance or problem areas. For site security purposes and to ensure that this service remains available to all users, this government computer system employs software programs to monitor network traffic to identify unauthorized attempts to upload or change information, or otherwise cause damage. Except for authorized law enforcement investigations, no other attempts are made to identify individual users or their usage habits.