gun, watching the testing of the naval guns at the washington naval yard. he also went up to west pointe in june of 1862 and watched the test of parent rifle cannon at the cold spring army, which is just across the hudson river from west pointe. so lincoln was very much open and on top of the changing technology of warfare, and did, in fact, play a creative role in getting more advanced weaponry for the union army and navy. >> what about davis? >> davis is less hands-on than lincoln but i think every bit as interested in the potential of technology, and innovation and indeed in almost any conflict in history the underdog is the one who is most likely to be willing to try anything new, because what did they have to lose? so yes indeed, the confederacy essentially invents the ironclad "virginia." they more or less invent the torpedo which we call today a land mine, they were experimenting with a movable torpedo that could go out and strike a very willing, the first submarine to sink an enemy vessel as a confederate submarine. the confederates if you want to m

yard in the underwater archaeology, archaeology and conservation laboratory. things recently recovered or in need of conservation are being preserved there. >> my name is george schwartz. i'm an underwater archaeologist for the naval history and heritage command. the site was originally discovered in 1979 and it was excavated in the early 1980s by another group and they recovered a large number of artifacts. basically what they did is they discovered the site, they mapped it and they recovered about 180 artifacts and they were found to be in very good state of preservation but they were conserved and put on display at the museum in maryland to commemorate barney's flotilla. what we have here are a collection of artifacts that were recovered in 2010 and 2011. right now, they're all in storage solutions because essentially what we need to do is keep the artifacts wet because if they dry out in an uncontrolled manner, they can deteriorate and essentially fall apart. so we have organic materials, metal materials, sometimes a combination of both, we have ceramics and glass. each one is in its own particular solution so it's well preserved until treatment can take place. treatment can take anywhere from a couple weeks t

they're coming thor yard forwar lawsuit they allege they were raped in their very first year at the academy. they speak exclusively to kyra phillip phillips. >> westpoint, any navaly, prestigious military institutions tasked with training future military officers ethically, spiritually and morally. but for these high school honor students, their experience would be far different. >> i remember him turning off the lights and me asking, what are you doing? >> in the middle of the night,i did come to and he was on top of me. >> carly marquette and annie say they were raped, raped by follow classmate this is a trusted and ignored, they say, by a chain of command that promised their parents they'd be protected? nobody, not a single person, not one, was looking out for her best interest. >> carly marquette was not your typical teenage girl. that's her, cage fighting at 18. an all-star rugby player, championship swimmer, an honor student, carly could have gone to college anywhere. >> what was it about westpoint that drew you to that academy? >> just knowing you have your future set, having that structure and discipline, at the same time, having people look at you like,