News bites: Sprint buys rest of Clearwire

According to The New York Times, Twitter offered to buy Instagram for $525 million even though Instagram's CEO said under oath the company received no offers other than the one from Facebook.

Sales of the iPhone 5 topped 2 million in China within three days, Reuters reports. 

The New York Times profiles Susan Creighton and Gary Reback, two former legal allies now on opposite sides of the Google antitrust case.

Facebook is testing its own version of Snapchat, an app that lets users send impermanent photos to each other, AllThingsD writes.