Editing There are unknown unknowns (section)

==External links==
* {{cite web |url=https://www.c-span.org/video/?168646-1/defense-department-briefing |date= February 12, 2002 |title= Defense Department Briefing |quote= <br />Reporter:<sup>37:19</sup> ...Because there are reports that there is no evidence of a direct link between Baghdad and some of these terrorist organizations. <br />Rumsfeld: Reports that say that something hasn't happened are always interesting to me... |publisher= C-SPAN}}
* {{cite journal |title= Known knowns, known unknowns, unknown unknowns and the propagation of scientific enquiry |first=David C.|last= Logan|journal= Journal of Experimental Botany |volume= 60 |issue= 3 |pages= 712–4|date=March 1, 2009|doi= 10.1093/jxb/erp043 |pmid = 19269994|doi-access= free}}
{{Iraq War}}

[[Category:American phraseology]]
[[Category:Epistemology]]
[[Category:Political quotes]]
[[Category:Unknown content]]
[[Category:Ignorance]]
[[Category:2002 quotations]]
[[Category:Donald Rumsfeld]]
[[Category:Iraq War terminology]]