FTC won’t try to block Google’s planned acquisition of online ad-serving vendor DoubleClick Inc. Marc Rotenberg: “This is the single biggest privacy meltdown that the Internet is currently facing” Google would have “deepest and broadest profile of Internet users of any company in the world,” he says. Rotenberg says Google might say today that they do primarily commercial advertising; tomorrow, perhaps they decide to do insurance evaluation or risk management, or border screening for the Department of Homeland Security.”]