after a few hundred feet, geoff disappears into a fog of sulfur dioxide rising from the magma.he gas is extremely toxic on its own; and when it reacts with water vapor in the air, it produces a corrosive acid rain. geoff notices the change in atmosphere and quickly climbs out of the crater. as the rain begins to fall heavily, the team rushes back to camp with their valuable equipment. and now all they can do is wait for mother nature to determine their next step. coming up, will the skies clear in time for geoff mackley to reach the core of this active volcano? then this free-runner is about to launch the most ambitious human-powered set of dominoes in history; and flying a kite has never been so glorious, a bird's eye view from the ride of a lifetime. from the big screen to small screens near and far twizzlerize your entertainment every day with twizzlers. the twist you can't resist. well, you've found delicious! ♪ ♪ must be the honey! ♪ it is so honey swagalish ♪ so much crunch, can you handle this? ♪ ♪ the party in the bowl don't stop! ♪ ♪ must be the honey! ♪ the party in t

liquid magma going hundreds of feet in the air. >> looks like a planet.ool shot. >> really does. >> a tough shot to get. they had wintry conditions, far east russia. you never know how the weather's going to react around volcanos. >> it's interesting, it's wintry weather. it's russia, it's cold. but seeing it you think it should be hot. >> you see the snow in the foreground and then the stream of hot lava in the background, and it does give you a strange sense how could these two things exist at the same time? >> you think, are those clouds? no, that's steam on the snow. >> looked like somebody took a big red sparkler and stuck it in the mountain. this is nearly 16,000 feet at its summit. shot by a mayn who goes volcano hunting. went for two weeks, waited 20 hours just to capture this video. >> it makes you respect the planet, though. it really does make you look at this rock that we live on with complete awe. >> ready for something evil to be poured. >> well, that ain't -- >> get ready for this one. it's going to make you go -- >> this is in utah, this v

. >> give as you sense of the magma tude here. are you talking thousands? are you talking tens of thousands? are you talking about millionseo of people who will have their access to physicianshysi restricted? >> anyone who goes into obamacare will have their access restricted. >> it is millions. >> it is millions. you may be able to keep youryo gp if you are lucky, but not your l full complement of doctors. i found a practice in florida that has seven pediatricians for 260,000 kids. seven pediatricians and not seven practices. >> seven doctors. >> right. i found a plan in new york that has a single oncology practice in it. if you go outside your networki you are forced to pay the full bill. doesn't count against your out of pocket maximums or deductible. >> is it always the full billn o or sometimes the reimbursments are less? >> sometimes it is partial payment and sometimes it ises i 100%. >> what does this do let's say i get really sick. i have cancer. i want to see a specialist outside of my network.y maybe somewhere else in thetwor country. i know you k

>> we have always knew there was one, under a weak spot, a thin spot in the crust where the magma isst part of wyoming, we now believe it's 1,000 square miles, 50 miles by 20 miles the other way and a magma chamber below the surface of 100 cubic miles of molten rock. you ask, how do we do this? the scientists at the university of utah had been watching earthquakes around the area. he know the seismic waving will go through a molten rock slower than a solid rock. so if the way they look at these signals, they know below this caldera right here, there's molten lava. this erupp about one her 800,000 years. the last type it erupted was 640,000 plus or minus a couple decades. so i think they're okay, unless stem cells can keep me alive for 100,000 years, but it's always possible. mother nature does what she wants. >> cool pictures, though. thanks for the explanations. >>> quickly, some cash for holiday shopping? you may want to pick up a megamillions lottery ticket. now the top prize has fur soared, now worth about $400 million, or do the math, we're talking a little more than $200 millio

if there was an eruption, life on earth would change or maybe end the study shows the magma chamber is two and a half times larger than previously estimated. so, if that super volcano were to erupt it would be 2000 times the size of mount st. helens in 1980. scientists don't know when it will rerupt but once every 700,000 years or so. >> we need to do math on that. >> well, this is not the sierra. this is vietnam. a rare snow storm hit the northern part of the country today and caused a five-hour traffic jam. this is normally a dry condition, but rain has been lashing around from vietnam and china this, is just latest unusual weather phenomenon. snowed in egypt last week for the first time in 100 years. >> truly bizarre. our weather? we have had a cold spell and looks like it's warming up but maybe sprinkle coming. sandhya? >> yes. cheryl and larry, not dan. radar may be tracking showers or drizzle. this will mean switch in winds and air quality will improve. traveling tuesday, snow heading into northeast. new york stayed wide temperatures warm in los angeles. 80s into the afternoon. a

lou: a new study shows the magma chamber below yellowstone is 2.5 times larger the previously determinedcano has the potential to be wrapped with the force to thousand times more powerful than that of mount st. helens in 1980 eruption. the last yellowstone eruption occurred 640,000 years ago experts say it is now overdue. now back with 18 -- the "a team" to remind me his approval ratings as clinton was higher duringg3 his impeachment? >> we were watching these everyday and there were midterm elections and republicans were blacked because it looked like they were going after clinton for personal matters but here looking at obama as ratings they are lower now. lou: there also lower than any other president with the fifth year of his presidency save nixon and he wasot saved. >> and heading into territory where it will be hard to leave and govern. lou: is it because the man lied repetitively or the course of four years? >> the one statement you can keep your health care. as is. period. >> i still hesitate to use the over the life because you don't know what his aides told him or if he looked

. ♪ ♪ lou: the new study quickly that finds them massive magma chamber beneath yellowstone national parkad previously been determined. that means this super volcano, it is that come a super volcano, it has the potential to erupt withf course some 2,000 times more powerful than that of the mount st. helens 1980 eruption. the last yellow so interruion occurred 640,000 years ago. experts, however, say it is now overduee. back with the "a-team," and i want to turn to you to remind me that president clinton's approval ratings were higher during his impeachment then president obama's. >> i represent the democrats during the impeachment of president clinton, the democratic judiciary committee. we were watching the things every day. and remember, there were midterm elections in the stands. the republicans just out waxed because it looked like it was -- there were going after clinton for personal reasons. that's it. exactly. so shocking. actually lower now, and there is nothing li an impeachment going on. lou: lower now, als lower than any other president in the fifth year of his presidency, save

magma. no. that's for the christmas reel. and look. and now, the new year begins. a new journey with you. >> many, many, messups to come that will make that reel -- >> we're taking notes. we're checking it twice. >> saw dan harris dance in that. >> a little cabbage patch. >> i tried to get that edited out. but it didn't work. >> thank you to the producers who put that together. did such a great job. amanda, jen, matt, liz, and seth. boy, they did such terrific work on this. thank you, guys. such a great job. be right back. . >>> good morning, everyone. i'm eric thomas. california's health care exchange is offering a grace period for anyone that tried to sign up before yesterday's deadline. officials won't say how long it lasts. 20,000 people were signing upper day as the deadline approached. >>> an update now on the travel into work christmas eve. >> as we take a look at the drive into al bahny, we have a new crash at central avenue and one lane is currently blocked right now. clear conditions, though, as you continue that dr

this chachl ber is absolutely packed full of magma and an eruption from this could cause widespread destructionh experts say they have no idea when this eruption could take place. >> yeah. there are plenty of earthquakes that happen out there as you said earlier, but those earthquakes are indicative of the tivts going on below ground. some of it may be caused by water intrusion and other things like that but the fact of the matter is there were three ee recommendations in this region before. there's defer it in going to be another one in the future. scientists don't know when. >> this could be like 40,000 years, right? >> we have no idea but there will always be adjusting earthquakes in that region so that region will remain seismically active and will be volcanically active. it's just the big one that people have to really be concerned about, and if we can get the science a little more refined, we'll have a better idea of when we might have some ballpark idea when to expect something might happen. >> now you're starting to comfort me a bit. i was going to ask you, are we going to get a warning