It's actually Tory policy to push the NFL over here

Along with Major League Baseball and NBA Basketball

http://www.espn.co.uk/american-football/story/_/id/12690535/conservative-party-announces-ambitions-united-kingdom-based-nfl-nba-mlb-franchise-part-manifesto-ahead-uk-general-election
http://www.democraticunderground.com/120453807

I do not agree with this. Rather than importing American sports, the government should be exporting British sports to America. Rugby League inparticular is something I think Americans could really take to.

Also, in the case of Basketball, we already have The British Basketball League, which needs to be promoted far ahead of any American NBA "franchise".