Originally Posted by Maxwell Smart

I took a new look at the current background check questionnaire, and apparently I was mistaken on terminology, it actually says:

"Have you EVER been issued a passport (or identity card for travel) by a country other than the U.S.?" (bolding mine)
If you answer yes then you have to provide all the details, including what countries you travelled to on that identity card.

So not "travel document", but "identity card for travel". By wording it as "passport (or identity card for travel)" it implies something that can be used IN PLACE of a passport, which the OCI simply cannot, so I think that actually makes it a stronger NO.
I just wish I were able to point to some official reference/statement/whatever that backs this up, to be able to provide to someone in case they query about OCI related to a background investigation.