DAN Air 727, Mount Tidy, Tenerife Canary Islands
Misunderstanding of ATC instructions and wrong actions by crew.
Recent 757/Tu154 over Switzerland and TCAS resolutions
This is a dynamic process, R/T phraseology with confusion between things like 'TO' and 'TWO' are being addressed all the time.
Flight Level 'Wun Zero Zero' being changed to Flight Level 'Wun Hundred' etc is proof that the system does 'care'.
Good on 'em, they've got my vote.
Good luck, the more we understand 'mis-understandings' the safer we'll all be.