Here is a sentence from an article about the fear on the part of the Argentine ministry of foreign affairs that a judge in the US, contrary to international law, might order the seizure of various diplomatic properties/assets/valuables abroad belonging to Argentina:
"No obstante, algunos abogados especializados en temas diplomáticos consideran que hay otros rubros dentro del servicio exterior que podrían ser pasibles de eventuales incautaciones por parte de los hold outs."
I can't figure out what the word "rubros" means here.