us san diego e navy was one of the bigger ships. is there any attempt to survey that wreck? 40 it is unable hundred and feet of water. not done for archaeological. but it is very popular for diving. my research is not done in the north area. -- san diego is deathly definitely a very popular site. spent a great deal of speculation that there were do know on it. do anything more about that? >> the lusitania, there was a lot of backlash as we all know. journals as sunk the started to backpedal. one of the claims to have made he was carrying munitions. which has been a point of debate for years. people do ep site, dive it. people who own wreks. who e is an individual filed a complaint about it. >> you spoke earlier about how one of the less publicized parts of the world war i. why do you think that is? >> great question. it is very significant need fiscal sites to experience this massively important engagements. -- world n for that is war i it was a much smaller scale. was a bigger scale. is not very hy it known is a couple of things. was a time they concerted effort by the gove