My Fellowship in 1978 enabled me to study inland waterway transport in North America, and this fitted in well with and enhanced the work I was then doing. However, I now have no involvement with transport planning.

I am now working as a publisher, lecturer and public speaker on World War Two code breaking, particularly on the Enigma machine and the work of Bletchley Park. I have published (not written) eight books on the subject, seven of which are still in print. I have also given over 800 presentations on intelligence in World War Two and allied topics. These have been given throughout the UK, in Belgium, Canada, Germany, Ireland, Poland, Slovenia and the USA, and on cruise ships.