Wow you dont believe this !!!
Now in europe on GEO WILD
is a documentation (Earth Investigated) about Hydrothermal vents, and how exploiting the minerals and metalics (copper , sink, silver, gold) -which are being vented into the sea- for economical reasons !!!!

This whole documentary fits into this thread and the reasons why they would do what they did in the GOM ...
about the bacteria and alien-organisms ... (making connections to mars and several moons in the solarsystem)