You can Google “Theranos Controversy” and read your fill. Here is one article from Fortune: http://fortune.com/2015/10/29/theranos-board-restructure/
Long-story short: the company was founded by Stanford drop-out Elizabeth Holmes and claims to be able to disruptively transform the hugely expensive and complex lab test sector of healthcare. But the WSJ had a hard review of Theranos’ claims and they have been scrambling ever since: http://www.wsj.com/articles/theranos-has-struggled-with-blood-tests-1444881901
Holmes has been positioned as a woman Steve Jobs, and been lauded with more recognition than you can list, from Obama, to being anointed a beautiful style icon. The valuation of Theranos puts her worth at over $4 Billion.
Theranos, through Holmes has indicated they will be releasing more data on their testing capabilities and performance.
This will be very interesting.