The Department of National Intelligence can not comply with providing those records as they are part of possible criminal investigations that would disclose sources and methods not to mention incriminating confidential informants who are likely in the employ of those and similar agencies.
The Department of National Intelligence can not comply with providing those records as they are part of possible criminal investigations that would disclose sources and methods not to mention incriminating confidential informants who are likely in the employ of those and similar agencies.
Many declassified documents are released in redacted format to protect things like sources and methods.