市场消息：美国司法部要求联邦法官分拆谷歌(GOOG.O)的广告技术业务，希望谷歌(GOOG.O)与竞争对手分享关键的广告数据。

Core Viewpoint - The U.S. Department of Justice is requesting a federal judge to split Google's advertising technology business, aiming for Google to share critical advertising data with competitors [1] Group 1 - The action taken by the U.S. Department of Justice indicates increasing regulatory scrutiny on major tech companies, particularly in the advertising sector [1] - The proposed split of Google's advertising business could significantly impact its market position and competitive dynamics within the industry [1] - Sharing key advertising data with competitors may lead to a more level playing field in the digital advertising market [1]