Tech Giants Issue Call for Limits on Government Surveillance of Users

Eight prominent technology companies, bruised by revelations of government spying on their customers’ data and scrambling to repair the damage to their reputations, are mounting a public campaign to urge President Obama and Congress to set new limits on government surveillance. The companies, led by Google and Microsoft, presented a plan to regulate online spying and urged the United States to lead a worldwide effort to restrict it. They accompanied it with an open letter, in the form of full-page ads in national newspapers, including The New York Times, and a website detailing their concerns.

It is the broadest and strongest effort by the companies, often archrivals, to speak with one voice to pressure the government. The tech industry, whose billionaire founders and executives are highly sought as political donors, forms a powerful interest group that is increasingly flexing its muscle in Washington. The political push by the technology companies opens a third front in their battle against government surveillance, which has escalated with recent revelations about government spying without the companies’ knowledge. The companies have also been making technical changes to try to thwart spying and have been waging a public-relations campaign to convince users that they are protecting their privacy.