I missed this interesting story when it appeared in The Guardian last week:
Sub wreck could reveal Japanese peace offer
An American Vietnam veteran could be about to answer one of the most intriguing questions arising from the second world war: was Japan preparing to seek peace with the allies more than a year before the war ended?
Paul Tidwell, a shipwreck salvager, said yesterday he believes wreckage of a Japanese submarine sunk by US warplanes in the Atlantic on June 23 1944 could contain a peace proposal from Tokyo that never made it into the hands of its intended recipient.
He has been down there twice before and found opium, apparently.