By Z. Byron Wolf December 4, 2013 Donald Rumsfeld's most famous quote has to do with whether there were weapons of mass destruction in Iraq. But he might as well have been a reporter talking about Obamacare. "There are known unknowns," said Rumsfeld back in February of 2002. "That is to say we know there are some things we do not know. But there are also unknown unknowns, the ones we don't know we don't know." Here, in order from least to most alarming, is a look at three of the things we're pretty sure the Obama administration knows about the health law and is choosing not to share: 1. How many people are on the website? 2. How many people are signing up? 3. How broken is the back end? (Excerpt) Read more: http://www.cnn.com/2013/12/04/politics/obamacare-secrets/ Hmm..., There's also the question of security in the system. The rollout of this debacle has destroyed Obama's credibility and has magnified his previous disastrous credibility issues on foreign policy, the economy and employment.