The answer is: Stupidity.
Question: Why would anyone recently from Africa that is sick and vomiting be on a tour bus near the Pentagon?
FOX still hasn’t picked this up... Neither has CNN.
There is always the possibility that there was a more sinister motive.
If extremist muslims are willing to be suicide bombers, .... ? You never know. They might intentionally get infected and try to come here and share it with us. The Pentagon would probably be a high target for them. They showed that on 9-11-2001.