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so by the 7th century, people have figured out how to heat treat steel effectively so that you'll get a spring instead of a paper clip. craig: looks pretty good. you can tell when your heat treat is relatively successful because you'll get this shiny gray, or kind of a flag gray, i guess, but the scale comes right off. that means it's gotten hard. chris: part of why i'm doing this is because i was well enough educated to find out what it was all about and appreciate it. we don't just to teach the history of swords and the history of armor. that's pretty limited. what we try to do is teach history using these as hooks as props and if we can bring them into a wider world through this portal, through this entry point of loving swords or armor, well, that's a great thing. rhea: to see more of christopher poor's work visit his website, armor.com his work is also featured in our area on the ship god's speed, at jamestown settlement, and at the folger's shakespeare library. next, we meet photographer scott baxter, whose found inspiration in the american frontier in arizona. for almost a decade, baxte

spring. he says all american troops will come home by the end of next year. >> this generation of americans has been tested by crises that steeledcurity and lasting peace do not require perpetual war. >> joining us now is michael beschloss, nbc news presidential scholar and historian. mr. beschloss, thank you for being here. >> thank you, rachel. >> the big arc of presidential history tells us that modern presidents and their second terms end up focusing on foreign policy, maybe more than they intend to, maybe more than their first terms. why is that? >> the main reason probably is when a president comes in for a second term, he usually has about six to eight months to get things through congress. it may seem small, but even lbj in '65, with 61% presidential landslide, more democrats in congress than any other time in the 20th century except for roosevelt, he knew enough about the senate and the house, he said i've got six months because i'm going to be asking democrats and some republicans to cast some risky votes. after a while, they're going to start rebelling because they're going to look to the election next year. foreign p

steele's new book be out in paperback? >> guest: probably early summer or late spring. roughly. that's a guess.he exact date on it, but that's just an estimate. >> host: randy in pennsylvania, thanks for holding. please go ahead with your question or comment. >> caller: good afternoon, gentlemen. since the sherman antitrust act was never repealed, why isn't it enforced? i think as long as we have this act with no teeth, what good is it? i think this'll divide our country like the caste system. thank you. >> guest: well, there are a lot of acts -- you're absolutely right on sherman -- in a whole range of industries that hasn't been enforced. and, unfortunately, this has been true of a range of issues. i mean, all -- so many of the free trade agreements actually have provisions in them that, if enforced, would go a long way toward making trade more equitable and fair and beneficial to many of our citizens here in the united states. so, you know, this is an old problem, but you're absolutely right. we have, don and i have been around long enough that we remember that there was a time when the anti