Here is a nice little site that list the US Federal agencies and private organizations who assist individuals in locating persons of unknown whereabouts. Could be useful for journalists trying to locate sources.
Military Locator Service (can help you to locate active, reserve, and retired Department of Defense (DOD) military personnel)
Army | Navy | Air Force | Marine Corps | Coast Guard |
<Locating Private Individuals |
IRS | SSA | Salvation Army Family Tracing Service since 1885. The service is designed to help people reestablish contact with close relatives they may have lost touch with a few years ago or many years ago. The service is available in many of the 100 countries where the Salvation Army is located.)
Department of State|
[The Privacy Act of 1974 prohibits Federal agencies from providingthe home addresses or telephone numbers of individuals without their written permission. Keep this in mind beforebeginning your search. In most cases, the agency or organizationwill only agree to let the person know you are trying tolocate them. They may also agree to forward a letter written by you to the person that you are trying to locate.]