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There’s no doubt that tech companies have beefed up their presence in Washington in recent years. Last year, Facebook spent more than $1.2 million lobbying lawmakers and federal agencies, including the FTC, on privacy, data storage and other issues.

Google spent nearly $10 million lobbying last year, nearly twice as much as the previous year, relying on in-house lobbyists as well as the Podesta Group and Normandy Group, records show. Microsoft spent more than $7 million in lobbying fees.

The FTC ended its probe of Google’s “Street View” mapping service after the company said it would improve privacy practices. But the Federal Communications Commission (FCC) launched its own investigation into whether the project ran afoul of federal privacy laws.

The FCC investigation didn’t say Google broke the law, but the inquiry raised fresh questions about how much the company knew about the harvesting of unsecured wireless data, including emails and search engine history.

Among the emails the FTC released to The Times was a message from an FCC enforcement official in October 2010 asking an FTC official “what you all are doing (or not doing)” on the “Google ‘Spy-Fi’ matter”?

On Tuesday, Rep. Edward J. Markey, Massachusetts Democrat, called for Congress to hold hearings after the FCC fined Google $25,000 for obstructing its investigation. Google has denied trying to block the probe.

While the FTC eventually dropped its “Street View” investigation, the commission recently hired an outside attorney to lead a separate antitrust investigation of Google.