What permission is required to access node reference data? I created a CCK field (claim_category) in a CCK type (claim), added a few claim_category nodes. 

When I try to create a new claim node (/node/add/claim), admin can see the claim_category drop-down list fine. However, an authenticated user sees an empty drop-down list with no option in it.

What permission is required for an authenticated user to to access the drop-down list data (claim_category nodes)?

Note: CCK Content Permission module is not enabled.
After I add a dummy CCK field in claim_category, the list show up properly.