I too think measurements like that are "fair", it is one of THE events in the US, so it makes sense to take special precautions.
That being said, the NFL should pay for this 100%. They should also pay for their stadiums (not threaten local fans / politicians they will move if not being financially supported), and frankly they should pay for any security measures during any NFL games.
The government paying for it is nothing but a quite heavy subsidy they don't need. It's the same though with any big sports league around the world where police / government is handling such affairs and the league is not paying for it.
That being said, the NFL should pay for this 100%. They should also pay for their stadiums (not threaten local fans / politicians they will move if not being financially supported), and frankly they should pay for any security measures during any NFL games.
The government paying for it is nothing but a quite heavy subsidy they don't need. It's the same though with any big sports league around the world where police / government is handling such affairs and the league is not paying for it.