by united states soldiers being taught by their leadership, that they are owner superior men and dave echos that. he goes oh the ubermensc treatment. to get soldiers to kill unarmed civilians, this is further complicated because of irregularity of warfare, the impersonal nature, for example, you press a button to kill hundreds of people. in the documentary, it was pass fating these gentlemen who killed these afghan civilians actually kept body parts they kept a finger of the first individual. and they were playing poker the rest of the friends they threw the finger on the cards. almost as an anti-ing up, so obviously other folks within the platoon knew about it, what do you think from your research kept them from speaking up? i think it is very difficult -- you have to imagine yourself being a very young person, in a very remote and alien part of the world. surrounded by danger. you depend on everyone many that unit for your safety. for your security. the adherence of the group is what keeps you intact. and it's very very difficult to step outside that group raise your hand and say i object

>> i would echo a number of comments dave just made. i have -- true confession, i've spent most of my life in active management business, but also a user of index funds because they represent a good value when you're trying to get exposure to markets. but in the market where you know a good manager who is one of that 30% that mary thompson referred to who outperform over long period of time and you have a special area where you want them, large cap equities, it's tough to get a manager like that. but there are certainly areas in the mar are ket where you can find active managers do a great job. in 2015, it could be that kind of year. straight up market means active managers have cash they will underperform the index virtually every time. but i think dave's points are right. 2015 could be a good year for active management. >> all right. especially if we have volatility coming back. thanks to both of you. i hope you have a great new year. dominic chu is back with a market flash. >> so one stock that is doing relatively well today is isis