so the higgs boson is sort of the completion. and one of the things that was so interesting about this discovery is it didn't have to look like this. there are other types of particles, other sectors that can make the higgs mechanism work. the higgs boson is in some sense the simplest possibility. but it could be more complicated and that's one of the reasons the experiments are now studying in detail propertys of the higgs boson to find out is it really the simplest example that implement this is mechanism or is it something richer and deeper that sheds light on what goes beyond? >> rose: do you consider it the greatest discovery in the 21st century? >> well, as far as i know --. >> rose: i'll say in the a different way. if not this, what would it be? >> well, you know, it could in the future as far as particle physics goes there's a lot of reasons to think the higgs boson is not the end of the story. >> rose: ah! so where do we go from here! >> exactly. so the higgs boson -- it tells you particles acquire masses but it doesn't

. -- books, but the war of words boson. -- goes on. >> we watched the president speak daily and this is the first time i saw him come out and without cause, go right into attacking mitt romney. clearly, trying to rebound from what some considered a

internal threat to the communist party and their chief partner in the world, really regime did not bosonsat an earlier moment no longer exists. so what did the party due? and other government would've turned itself inward. it would've shut itself off from the world. they open themselves up. you want to find the best experts of the soviet union's collapse today. they all did in beijing. that is because after the soviet union collapsed, the party sent his academics and experts to the soviet union and eastern european countries to do an autopsy on their failure. they wanted to understand what happened that led for this government should no longer be there. and then, what are we going to do to make sure we don't follow their example? what his father disappeared at tremendous economic vibrancy. what is followed as they walked back away from ideological rigidity. the regime actually than a few have traveled realize you don't feel like you're in a communist country when you're in china. it has explosive economic growth. the fundamental bargain between the government and the people shifted. for a