Wirelessly posted (HTC-P4600/1.2 Opera/9.50 (Windows NT 5.1; U; en) UP.Link/6.3.1.20.0)
did they actually say he can't fly or did they collect his DOB at check in to verify that your husband isn't someone else.
in the US you can file something to investigate it, but i don't know canadian policies.
his new middle initial can be NMI for no middle initial.
if he wasn't denied a boarding pass then he isn't on the NFL himself, just has the same name as someone who is.