revisits that first hot conflict of the cold war, and explores its continuing legacy with warren wiedhahn, a u.s. marine veteran of the war, plus historians michael beschloss and alex roland. that's all ahead on tonight's "newshour." major funding for the pbs newshour has been provided by: and by the alfred p. sloan foundation. supporting science, technology, and improved economic performance and financial literacy in the 21st century. and with the ongoing support of these institutions and foundations. and... this program was made possible by the corporation for public broadcasting. and by contributions to your pbs station from viewers like you. thank you. >> woodruff: the campaign to toughen financial regulation in the u.s. reached its climax today. it came nearly two years after the financial meltdown that triggered the current recession. >> woodruff: the financial overhaul bill was one of the chief items on the president's agenda and he signed it with fanfare, before an audience of 400 lawmakers and others. >> it will finally bring transparency to the kinds of complex and risky transac

alex roland, michael beschloss, colonel wiedhahn, thank you very much. >> thanks. >> lehrer: again, the major developments of the day: president obama signed into law the first major overhaul of the financial system since the great depression. the chairman of the federal reserve ben bernanke warned the economic outlook remains unusually uncertain. and the obama administration apologized for firing an agriculture department worker over racial remarks. it turned out she was taken out of context and agricultural secretary vilsack said today: "i did not think, before i acted." the "newshour" is always online. hari sreenivasan, in our newsroom, previews what's there. hari? >> sreenivasan: learn about the newest special interest group on capitol hill-- the tea party caucus. that's on "the rundown." also there, a reporter's dispatch from the international aids conrence in vienna looking at eastern europe's drug problem, which is feeding the fastest growing h.i.v. epidemic in the world. there's more of paul's interview with the greek prime minister. and watch a conversation with all that and mo