cryolife in new york city sees up to 90 clients a day and is having to turn away customers because they can't keep up with demand. since opening in 2013, their business has quadrupled. >> the public is becoming mor more aware of what is going on. it has increased nationwide. we get calls internationally from mongolia, from brazil, from portugal. we set up the cryolife center here. >> but treatment has its skeptics. >> i think for the most part it's a fad. that's okay. there are a lot of people doing this, a lot of people think it works well. there are folks making a lot of money for it, charging 50 to $100 for getting frozen. we don't have the science to prove it yet. >> whether it's a fad or here to stay, cryolife has committed to opening up four new locations in the country in the next six months. like we said, becky, whether it's here to stay or not is not quite clear, but this small business is dedicated to the process and they think this is here to stay. >> the guy you interviewed said he had gone in five times, just five treatments, and he was back playing golf again? >> he was a

northwest passage, there is a 10-second clip where an american was involved in getting a mineral called cryolife -- cryol and i did not know why they would be doing that, because they were to be neutral during the war, so i want to find out what that was and why americans ended up there, and it storye into a global about the united states and the polar region. host: of course, we were inching into the war in 1941 prior to pearl harbor. there is a significant date, april 9, 1940. why? : april 9, 1940 is the day germany invaded denmark. that left areas up for grabs. basically, after germany invaded denmark, the jurisdiction over -- islands,s iceland, and greenland was in question. they could not occupy greenland because of the monroe doctrine, which stopped to prevent incursions pre-in this matter to roosevelt for a couple of reasons. it was to forestall international actions, but he could also use it domestically to get the american people on his side of the security policies, so that is what he did. he was in a train car on the host: : it is radically. 1949, it was a closed-door colony, so denma