>> rosenstein: in foreign countries.eastern europe, there is a market-- a black market-- for american historical documents. >> simon: how do these black markets function and where are they? >> rosenstein: i think it's like any illegal market anywhere in the world. if you know of somebody who has a lot of money and wants to collect significant, unique items and you make that connection, then you may well be able to make the sale. >> simon: but barry landau has been put out of business. this summer, he was sentenced to seven years in prison. and that's not all. >> rosenstein: even after mr. landau is released from prison, he will be prohibited from visiting museums, libraries, or any other places where documents are deposited. >> simon: one after effect of the landau case is that security is being tightened in many of these places. pat anderson is imposing new rules in the maryland historical society. >> anderson: our patrons are no longer allowed to wear jackets in the reading room. and it's unfortunate-- some of our olde

barry rosenstein, jana parter ins.. >> thank you for watching "street signs." >> "closing bell" is coming up. see you same time tomorrow. ♪ forz(power!) andiamo! andiamo! (let's go! let's go!) avanti! avanti! (keep going! keep going!) hahaha...hahahaha! you know ronny, folks who save hundreds of dollars by switching to geico sure are happy. and how happy are they jimmy? happier than christopher columbus with speedboats. that's happy! get happy. get geico. fifteen minutes could save you fifteen percent or more. now we need a little bit more... a little bit more vanilla? this is great! [ male announcer ] at humana, we believe there's never been a better time to share your passions... because the results... are you having fun doing this? yeah. that's a very nice cake! [ male announcer ] well, you can't beat them. [ giggles ] ohh! you got something huh? whoa... [ male announcer ] humana understands the value of spending time together that's a lot of work getting that one in! let's go see the birdies. [ male announcer ] one

i also want to point out, david, your excellent interview -- >> with barry rosenstein yesterday.have no intention of splitting the company up. that's the focus right now, but the stock is going to be weak because of that mosaic. >> the mosaic i have on tonight on "mad money." very disappointing. this is one of those where monsanto reports tomorrow. that's the star of the ag show right now. >> the story of the mosaics highlights the fine line at how much does the drought actually help the fertilizer in the farm equipment makers or how much does it hurt? because what they were seeing the caution because of the broader economy and the pull-back in anticipation of next painting season. and there's also mosaics most notable problems, lower beginning inventories to the season and lower mississippi river levels. their ability to meet on the production side was impaired and the ability to get the product to customers was also impaired. sort of a double whammy. >> i always find in if you look through and come one the reasons, that's a mistake. people wanted -- they are used to having the