Mike Krieger is one of the cofounders of Instagram, the popular photo-sharing app that Facebook bought for $1 billion in 2012. But because of a flaw in US immigration law, Krieger might have left Instagram before it even developed its first product in 2010.
We're here in San Francisco at the Facebook F8 conference for software and app developers. It's in a trendy media space on 8th Street called the Concourse. Basically, it's a massive barn-like warehouse that Facebook has filled with info booths at which you can ask staff about every aspect of its business.