News reported that there is an printing error with 1.1 Billion, $100 dollar bills and they are now reverting back to printing the old $100 dollar bills . . .. Anyone have any indepth info as to why, what and additional info?

http://www.bostonherald.com/business/general/view/20101207uncle_sams_bad_bills_printing_error_on_mass_cos_paper_could_cost_120m/srvc=home&position=5

That's alot of money ! !  ($110,000,000,000 billion dollars), is there really that many $100 dollar bills circulating around the US? or the world?  

  see how sheltered a life I live - lol