CAPTAINNIC & Samba,
What you heard were not mere rumours. As someone who had flown with some of these con artists, it was amazing how easy it was for them to con the KAL flight administration. A number of those were on the B777 and quite a few on the B744 when KAL started to accept non rated DECs. Ah, not forgetting those latinos with ICAO level 6 English having great difficulties with RT in Europe, Oceania and certain parts of Asia. How did they get level 6 English....the secret....a certain US ICAO English examiner of Latin American extract contracted by the Koreans to conduct the ICAO English tests just wantonly passed his latino bethrens with excellent scores. Other excellent speakers of English ( other than Americans and British ) sometimes only get a 5! And I have flown with these and they have absolutely no problems with ATCs RT all over the world.
There is cheating all over, only more so in India, Korea and some areas in the Far East........any rumours in Vietnam?