In March 2009 , Napolitano told the German news site '' Der Spiegel '' that while she presumes there is always a threat from terrorism : " I referred to ' man-caused ' disasters . That is perhaps only a nuance , but it demonstrates that we want to move away from the politics of fear toward a policy of being prepared for all risks that can occur . " In April 2009 , Napolitano , in an interview defending her plans to tighten the Canada – US border , incorrectly implied that September 11 attack perpetrators entered the United States from Canada , a claim which had previously been made by multiple politicians based upon erroneous news reports in the days after the attack . Although Napolitano clarified she misunderstood the question and was referring to other individuals who had planned attacks and entered through Canada , some Canadian diplomats and leaders were displeased at what they saw as the persistence of a myth
September 11 attack
September 11 attacks
Janet Napolitano