Read the article Mr. Haney wrote in the Hill about this here. Mr. Haneys book See Something, Say Nothing further details his experiences.
So how would our leaders come to understand the threat? How would FBI agents, CIA case officers, or DHS employees?
From the time they enter government service, and during their daily work, the message is that this war has nothing to do with real Islam.
The factual basis for understanding the enemy threat doctrine Sharia is nowhere to be found in the U.S. government, and so the very people charged with protecting American citizens remain ignorant of the threat of Islam.
This is the intentional outcome of the U.S. Muslim Brotherhoods decades long campaign.
note: Obama has been accused of being a Muslim Brotherhood member. His actions related to Egypt and Morsi and his overthrow indicate he might actually be one. I've not recently heard Muslim Brotherhood mentioned in our media. They are now headquartered in Turkey. Along with the leaders of ISIS and al Qaeda. Is this an accident? No. How many Muslim Brotherhood members are still officials in teh US Government? How many are still in Homeland Security? Questions worthy of answers.
Hillary and Obama have also been charged in Egypt for financing the admin of Muslim Morsi.