The advertising and search deal secured on Thursday night between Yahoo! and Google could still be unravelled after the chairman of an anti-cartel Senate committee in Washington pledged to launch an investigation into the transaction.Herb Kohl, the chairman of the Senate sub-committee on antitrust, competition policy and consumer rights, said: “The consequences for advertisers and consumers could be far-reaching and warrant careful review, and we plan to investigate the competitive and privacy implications of this deal.”
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