text: FM 2.22.3 _________________________________________________________________________________
  I-6. Source-associated documents are documents that are encountered on or
  in immediate association with a human source. These may include both
  official and personal documents. Documents associated with human sources
  are normally exploited, at least initially, during the interrogation or
  debriefing of the source. Interrogators typically use these documents during
  planning and preparation for interrogation of the associated EPW. These
  personal documents and source identification documents are therefore
  evacuated in conjunction with the associated source and sent through
  prisoner, detainee, or refugee evacuation channels rather than through
  intelligence channels. If the duplication capability exists, collectors should
  copy personal documents that contain intelligence information and evacuate
  the copy through intelligence channels. The original personal document
  should be evacuated with the detainee but not on his person until the
  HUMINT collector has exploited it. Collectors evacuate official documents
  through intelligence channels after initial exploitation. If possible, the
  collector will copy official documents and evacuate the copy with, but not on,
  the source.
  OPEN-SOURCE INFORMATION
  I-7. Open-source information is publicly available information appearing in
  print or electronic form. Open-source information may be transmitted via
  radio, television, newspapers, commercial databases, electronic mail
  networks, or other electronic media like CD-ROMs. Whatever form they take,
  open sources are not—
  • Classified at their origin.
  • Subject to proprietary constraints.
  • The product of sensitive contacts with US or foreign persons.
  I-8. In all operations, open-source collection can be a valuable addition to the
  overall intelligence collection and each intelligence discipline’s efforts. Open-
  source information supplements the HUMINT collection effort, and all types
  of open sources must be considered for exploitation.
  I-9. Open sources are evaluated and categorized as friendly, neutral, or
  hostile. Certain high-value, open-source information sources may be
  identified for continuous monitoring. Other open-source information sources
  may be identified to screen for the presence or lack of specific indicators. In
  addition, the information obtained from open sources is extremely helpful for
  the HCT members to be current with the latest developments in the AO,
  which enables them to establish rapport and effectively converse with their
  sources. Open-source documents are exploited in the same manner as CEDs.
  OPEN-SOURCE DOCUMENT OPERATIONS
  I-10.Open-source document operations are the systematic extraction of
  information from publicly available documents in response to command IRs.
  Open-source document operations can be separate operations or can be
  included as part of other ongoing operations. Open-source documents are
  significant in the planning of all operations, especially during the execution