Originally Posted by 
AK83
				 
			Bob! I'm not sure how you come to that conclusion when your Utube link vid said the same thing as the historical article below did ...
"As Philadelphia planned its parade, bound to be a large gathering,  director of public health Krusen had ignored the growing concerns of  other medical experts and allowed the parade to proceed, even as a  deadly outbreak raged on nearby military bases.                      A political appointee, Krusen publicly denied that influenza was a  threat, saying with assurance that the few military deaths were  “old-fashioned influenza or grip.” He promised a campaign against  coughing, spitting and sneezing, well aware that two days before the  scheduled parade, the nation’s monthly draft call-up had been cancelled  because army camps, including nearby Camp Dix in New Jersey and Camp  Meade in Maryland, were overwhelmed by a conflagration of virulent  influenza. Philadelphia’s parade poured gasoline on the flames.
Krusen’s decision to let the parade go on was based on two fears.  He believed that a quarantine might cause a general panic. In fact, when  city officials did close down public gatherings, the skeptical  Philadelphia Inquirer chided the decision. “Talk of cheerful things instead of disease,” urged the Inquirer on October 5. “The authorities seem to be going daft. What are they trying to do, scare everybody to death?”
Authorities HAD a very full idea of what was going to happen, as they were warned. 
They had the information of the unfolding events from the army barracks, draft call, etc.
That they chose to ignore the warnings isn't the same as saying they "had no idea about what was about to happen". 
Where it says in the extract of the article that Krusens inaction due to his fear of a general panic, is just a euphemism for he didn't want risk his political aspiration so easily.