>> gretta, thank you for having me. this was the first hearing that we've had about the profound anti-trust issues that have emerged in the new tech age, and in the 19th century, america wrestled with the robber barons and today we've got cyber barons and these are the lords and titans of big tech who have every bit as much power as john d. rockefeller and the vanderbilts and the people who control the new industrial people. there are huge come glom rats and they've done remarkable things and none of this is to begrudge any achievements of the individuals who were there yesterday but we've got to look at it structural in terms of what this does to small business competition, new entrants to the market, manipulation of prices and all of the old-fashioned, anti-competitive practices that have been updated for the high tech world. in addition to that, we've got all kinds of spillover effects in terms of the privacy of americans, the free speech of americans, civil rights questions, and democracy itself which was threatened