Facebook CEO Mark Zuckerberg appearing in court.
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Tech's antitrust problem has been out in the open for years
On January 23, 2013, Dick Costolo, then the CEO of Twitter, teased a new six-second video service with an oddly captivating clip showing how to make steak tartare. The next day, Twitter officially launched Vine, with the potential to put Twitter at the vanguard of mobile videos and establish it as a destination for more than just 140-character bursts of text.
