Google's recent acquisition of DoubleClick has drawn some unwanted attention. Privacy advocates are calling on the Federal Trade Commission to investigate a deal that brings together two powerful digital entities capable of gathering vast amounts of personal information and tracking individuals online, according to The Washington Post.

"Google will operate with virtually no legal obligation to ensure the privacy, security and accuracy of the personal data that it collects," a complaint filed today by the Electronic Privacy Information Center read. "At this time, there is simply no consumer privacy issue more pressing for the commission to consider than Google's plan to combine the search histories and website visit records of internet users."

DoubleClick refutes the charges that the acquisition will somehow breach consumer privacy.

"Information collected by DoubleClick DART ad serving technology belongs to DoubleClick's clients and not to DoubleClick," the company said in a statement. "Any and all information collected by DoubleClick is, and will remain, the property of the company's clients. Ownership rights, like the other terms of DoubleClick's client contracts, will be unaffected by any acquisition."

Google's $3.1 billion DoubleClick acquisition has also come under fire from Microsoft, which lost out on its bid to court DoubleClick. Officials at Microsoft urged the Justice Department to look into antitrust issues raised by such a large ad firm.