I'm surprised to see Pilots and Flight engineers up there at 3. I suppose it includes military as well as commercial. Probably those nasty helicopter things, too. They don't fly - they just beat the air into submission.
It wasn't just the bridge that was wrong with the latest Potter- though I remember being distinctly annoyed by it. The rest of the film was rubbish, too.
I remember reverse-engineering dongles back in the mid-80s. They were generally fair simple logic chips made up into simple circuits that responded in predictable ways to inputs - then potted in epoxy. Getting the epoxy off wasn't too hard, nor was tracing out how the pins were connected - the time consuming bit was generally working out which chip had been used as the part number was always sanded off.
I presume it sort of makes itself - place a square sheet of thermoplastic over a former and turn the heat up until it droops to the floor - then allow to cool.
Just about anything else and I'd have wolfed it, I'm sure.
Critical? Ripped it to shreds!
http://www.bbc.co.uk/programmes/b00mjpnk
Starts about a minute in - but it's worth hearing the rest of of the programme for the Mark Knopfler interview.
Rather spoiled, in hindsight, by the barmaid asking if I wanted my usual.