sn>> sir, david bachman, sic corporation. you mentioned energy in your comments in the beginning and i was wondering how think what the navy's energy risks and challenges are, versus your prioritization is, given finite resources, the energy play. >> i tell my staff and i'm not a big power pointed guy andy auto hate them and this about took me to the edge, right here. [laughter]. >> but, the -- there are two slides that have just really gotten my attention. since i have become chief of naval operations, one is total ownership costs of what we buy. we are very quick to say, gee, we have a good price on the ship, so we'll buy it. but we have not been looking at total ownership costs. total ownership costs get to the manpower bill, that i was talking about. get to what it costs to operate some of the very sophisticated equipment, and imbedded in that total ownership cost is the other slide, that got my attention, and it is the locations and the estimated longevity of oil reserves, globally. and i'm not a novice to this. i grew u