Melchett, the "home town boy" story is another sanctioned breach.
Before a prestigious overseas visit we were requested to complete a personal summary for local papers home and abroad. Purely voluntary you understand; I declined and was told I was no longer on the trip.
There are so many instances where publicity could come back an bite you - display pilots for instance are vulnerable. You can still find a picture of my uncle 60 years on from the Grapple tests.