An engaging documentary. British, so does go back over the same stuff every few minutes.The ingenuity and bravery of the Italian pioneers was amazing, but typical of so many of all nationalities during this period. I didn't know the background to Buster Crab, who disappeared while investigating the hull of a Soviet ship in Portsmouth
As a kid in the sixties, Midget subs had fascinated me. I had a toy sub like the one in the photo.