@@yau7639 then how are china/us doing their nuclear tests/verification(I don't believe they stop doing that but just not the actual thing) ? NK and may be Iran are the countries that need actual test. Note this is not a dig about the achievement(which by itself means a lot for the things that involved).
would that be the same for the Bombardier C series(flopped), or the Japanese or the Brazilian one or even Boeing/Airbus ? Should they are be marked as 'UN version' ;-)