A wave of pioneers is poised to scoop up treasure from the deep sea.
But was this ocean mining boom sparked by a 1970s CIA plot?
- By David Shukman
In the summer of 1974, a large and highly unusual ship set sail from Long Beach in California.
It was heading for the middle of the Pacific where its owners boasted it would herald a revolutionary new industry beneath the waves.
It was billed as the…