jay haigler has seen it. >> combining the importance of history and ancestral memory, and understandingpplies today, combining those things with scuba diving-- that was a match made in heaven. >> brown: haigler is part of“ diving with a purpose,” a group of primarily black divers who love to go under water, but also have a larger mission: to find and research sunken ships from the inteational slave trade. >> the stories that we tell are important. and more importantly, e untold stories. these stories-- the "guerrero" and then many other ships-- as we got more involved in the search for these ships, became exciting because most people haven't heard the story, including myself. >> brown: “diving with a purpose”, or d.w.p., was founded in 2003 by divers ken stewart and brenda lanzendorf to join an ongoing effort to find the remains of the "guerrero," a ship that wrecked on a reef in the florida keys in 1827 after a battle with a british warship trying to enforce anti-slave trade laws. of the 561 enslaved africans on board, 41 drowned. tara roberts, a "national geographic" "explorer and sto