The Washington Post reports the National Security Agency has secretly broken into the main links connecting Google and Yahoo data centers around the world, allowing it to vacuum up millions of records every day, including those belonging to Americans. Citing documents released by Edward Snowden, the Post says the NSA is working with its British counterpart to operate a project called MUSCULAR, that involves sweeping up vast quantities of data flowing across fiber-optic cables between the tightly guarded data centers. In a statement, Google’s head legal officer said the company is “outraged at the lengths to which the government seems to have gone to intercept data from our private fiber networks.”