coming from glaciers is forcing warmer water probably a little confusing for those of us who are laymen but is that what you think is the problem that it's going too far and the effect that will have? >> well we've seen some examples. i mean one of the best examples is a major glacier in greensland where the removal of the ice shift, the removal of the ice shelf which acted as a buttress to one of the glaciers there allowed the glacier to flow much more rapidly. so part of interior of greenland began to flow into the ocean much more rapidly. it slows down but relates to the bottom topography, it doesn't necessarily continue for decades or years. >> last question, the process is unstoppable, what can be done? >> we have a real problem in that we are changing the climate, changing the composition of the atmosphere. i think jim's concerns are very real. i don't think that the arguments that he uses with regard to sea level rising so rapidly are necessarily the most compelling once however. the ones with regard to storms already, hurricanes, there is a typhoon that hit japan today with prod

once you share the secrets with the laymen, we are nervous to share our secrets with you because we areaid you're going to turn around and share with everyone else. john: in some ways you guys are like coca-cola you have a trade secret that you don't want to write down for people to steal you just want to keep it secret. coca-cola has done that thomases english muffins none of this is legally registered anywhere. >> that's right, the reason they don't register it is because patents and copyrights only work for a limited time. but when you keep something a trade secret, you can keep it a trade secret for 100 years and coca-cola has done that. some people allegedly did steal the secret. pepsi went to the fbi and told coca-cola? >> yes, these people got punished. i don't know if they realize that going into it, but stealing a trade secret is not just a faction but a federal crime and so they got in real trouble for doing that. john: penn and teller registered an act with the u.s. copyright office 30 years ago recently somebody in belgium posted a video of the trick that he called the rows

they have different business models, but how do we laymen on this to make it legislation that would harmonize protections for consumers. we speak to that how we better informed as a parent of daughter sees debit cards and credit cards that would equalize protections. >> it's interesting because the regulation grows up through historical circumstances that don't make logical sense. credit card protections were developed at a different time and for different purposes and by the way another example is prepaid cards. they have no consumer protection. most people are unaware of that is why we work to get the rule finalized to cover the gap. what you say is credit cards and debit cards started out as being seen as distinct. they were about credit and the way they get away from store cards. they were seen as having to do with atms and other things. that kind of merge together as payment mechanisms and people often now they pull out one card with the other and not think that carefully about bed although some people are quite careful. i believe the fraud protection is $50 limit of exposure and a debit

. >> we're laymen; right? but these sharks they take a anybody else, but once they get a taste for humans, that's what they want. they want over and over again. i don't know if that's an urban myth or not, but when you hear that kind of stuff and you see the news, the occurring amount of bites that happen in a short time period, people have to have at least more caution; right? >> well, look, if you're worried about a shark attack when you go down there and the shark biting you and releasing you, and you're measuring the impact on your life, you should be terrified to drive to the beach in your car or walk across the street. so what level of risk are you trying to manage against in your life, you know? when you see these little, there's these sharks swimming up and down the beach right now, these smaller sharks, and that's why you're seeing clusters of these small bite and releases. if sharks wanted people, they would be cruising around biting a lot more people. you just don't see that. >> we needed to hear th