begin with the m. mass. mass. and the nucleon will have more energy which is to say, equals-- which was easy to say will have more mass outside the nucleus than inside. and in there lies the secret of nuclear energy because the graph of the nucleons would be something like this. over here 92, there's the graph that really, really tells it. and it's a graph, mass per nucleon versus atomic. now, it's not the mass of the whole atom, mass of the whole nucleus, it's the mass of each nucleon in the nucleus. and you say, in hydrogen it has the most mass of all. none of its mass is bound up with energy or binding anything else with it, it's all by itself. and as you continue to go up the periodic table, you get varying amounts of mass per nucleon. the point is, how much mass you got? depends per nucleon, depends what nucleus you're in. let's look at the uranium fission in terms of this relationship. here's uranium right here. the uranium atom has nucleons which have about this much mass each, each, all right? what's gonna

mass and energy. this is the famous e equals mc squared equati that later is falsely claimed to make him the father of the atomic bomb. >> e stands for energy,@mnds for mass. the small c a. >> speed of light. >> a term of science. the c itself is the speed of light and you square the speed of light and then matter and matter becomes interchangeable with -- >> eney. >> with energy. >> yes. >> and this of course is at a very sic level the sec"et to the atomic bomb. , of course, rejected with i@ think complely correctly rejected the idea that he had pa trntty of the atomic bomb. hehad nothing to do with that p"ogram, but he did come up with the equation and soaked in. >> that isn't quite true, though,it? >> he could not see what the equation produced. >> he wrote a letter to roosevelt and said that uranium is susceptible the atomic power in so many words. th could be done by others. that was suggested in a letter, correct? and that led@rooselt to form a@committee. that committee would then assemble in the manhattan project. now as i read einstein, he's very careful to say i didn't do any of at. he didn't. he wasn't involved in the project directl

said family members celebrated a private funeral mass today. slain m-i-t police officer sean collier. who was killed thursday. was also laid to rest today in a private ceremony. a total of 264 people got hospital treatment after the bombings. boston's major says 20- million dollars has now been raised for the victims. were seen to images tonight showing the bombing suspects during a shootout police early friday morning. to a close look at his image. this appears to be the suspect right there using this as you be as cover. older brother naturally after that exchange and on friday night, young brother was found hiding in his boat in the backyard of a watertown home. the owner, a ladder and checked out his boat. >> i got three steps up the ladder and i rolled it up and i could see i saw blood and. a good amount of blood. in my eyes looked at the other end, and there was a body. >> at that moment, will you do it. >> oh my god. this guy. it's a real. the liven up were calling a national hero. the line >> been created to help henneberry fix or replace his be

it took at least 20-years before true m true man began to creep up on the lists of presidential greatness. >> weapons of mass destruction the stated reason for the launching of the iraq war never came up the launch toward democracy and reduction of prowl dux despite developments were positive developments. >> i think our troops did an absolutely stunning job. he deserves credit for what troops did when they went in. >> historians are likely to rank mr. bush's fiscal response to hurricane katrina as his greatest failing in office. there was the financial collapse in late 2007 it traces back to clinton era housing policies. the polling surge for george w. bush to the president's actions of the aftermath of what was the most traumatic events of the bush years. >> 9-11 as the most defining moment of their lives like pearl harbor or kennedy assassination. people will remember 9-11 and recall george w. bush in my opinion did a good job of uniting the country. >> there is much more to the bush 43 legacy tax cuts no child left behind the war in afghanistan and a major push when henry kissinger told nixon history wou

. >> reporter: the new measures wouldn't prevent mass shootings like newtown from happening. nor m senator manchin say t families admit this wouldn't have help the children of newtown. >> reporter: congress is just not eager to enact new gun laws. a fact lam booned on "saturday night live." >> this week, the senate voted 68-31 to begin debating the idea of discussing gun control. let me say that again. they have agreed to think about talking about gun control. >> that bipartisan deal was supposed to break the log jam in the senate. still a real uphill fight? >> reporter: it's not there yet. the bill's advocates acknowledge they don't have the votes yet to get the bills passed. that's why the newtown families are returning to washington this week to lobby for the remaining votes they feed. >> okay, jon karl, thank you very much. >>> now to the fears of the deadly outbreak of bird flu that it may spread outside china. the death toll is 13. more than 60 are ill. dr. richard besser is on the ground with the latest. this disease has spread very quickly. talk about what the latest effort

that iraq had w m d but that had never been seen in the probably been described as a very small amount that we know was the didn't throw although their weapons of mass destruction they were in a large enough scale to cause as much of a problem so why write the law it was not the law it was the lie was not that iraq had w m d i think everybody sincerely believe that to be true i believed it to be true why it said and behave like that if he had nothing we now know he was bluffing but nonetheless it was a great reasonable logical inference to draw that he had something because of his attempts to obstruct the un weapons inspectors or lie wasn't that the lie was the claim that those weapons of destruction mass destruction were a growing and serious threat a threat so serious. they needed a preemptive war to deal with them so it begs the question we knew that to be a lie and a lot of a lot of people in the british intelligence assessment knew that to be alone so it begs the question if the danger was not that imminent why was iraq invaded there. well i think it was invaded precisely because it was weak actually i think they tony tony blair in particular h

weapon of mass destruction namely an improvised explosive device or ied against persons and property within the united states resulting in death. also one count of malicious destruction of property by mve device resulting in death. those statutory authorize death or possible imprisonment for life or term of years. those sound similar to the charges timothy mcveigh was charged for. in the 11 charges, use of mass destruction, conspiracy to use mass destruction, destruction with the use of explosives and eight first-degree murder charges for those federal officers. i am assuming you are not surprised by what eric holder has decided to do. >> no. i'm actually reading the affidavit right now. i have it here in front of me. and it's a very specific affidavit by the fbi lead agent that specifies all the evidence against this defendant that he placed the knapsack down, that it blew up. and in terms of the elements of the crime, the specific factual elements of the crime, they seem to have an overwhelmingly compelling case. where i think the problem may come up is in how you infer intent to violate the terms of the statute from this. and i think they probably won't have a difficult time based