warren buffett is buying lubrizol, the specialty chemicals maker. it was only a week ago he said his berkshire hathaway was shopping for new acquisitions. then today we hear a $9 billion deal for the maker of lubricants and petroleum additives values lubrizol at $138 a share. it also includes the assumption of $700 million in debt. lubrizol shares surged almost $30 to $134.68 a share. that's a jump of 27%. and that's tonight's "market focus." japan's nuclear problems are prompting a second look at the safety of nuclear energy. governments across the world today said they would slow down development of new nuclear power plants, but china and russia are moving forward on new plants. so is the united states. darren gersh looks at an industry whose future is now in doubt. >> reporter: at a white house briefing today, regulators would not say whether u.s. nuclear plants could withstand the kind of massive earthquake that has crippled japanese reactors, though they insisted u.s. plants are safe. safe enough, white house spokesman jay carney said, to conti

tonight's "street critique" points to this week's at&t/t- mobile deal, and the lubrizol buyout by warren buffett last week as prime examples. she's hilary kramer, editor of gamechangerstocks.com. >> buyouts are back. that has you as an investment banking to get in with goldman sachs. what makes you like goldman, and what's the catalyst? >> goldman sachs is best of breed. the beftd talent, reaches global, and a lot of these mergers and acquisitions are cross border, emerging markets, and goldman can finance it and has a chance to do the deals. it's a great company to own for the long term. >> tom: you also like smaller investment bank, ever corps that's been at the heart of a few deals. e vx*f rx+f the ticker symbol. what's the catalyst? >> ever corps, evr. it's a smart investment bank boutique at the middle of mergers and acquisitions. a lot of people don't know about this company. you want to own the investment banks in general. these bankers are paid baseed on compensations on stock price. whether it's goldman sachs or j.p. morgan or ever corps. they're aligned with the xwloifees who d