It has been reported none of the balls were used during the second half.
And Tom Brady, who was adamant about the way the Patriots ball attendants prep the footballs so that they are perfect (just the way he likes them), had nooooo idea there was a problem, and nooooo idea that the officials had either altered or replaced his footballs, until Monday morning when somebody asked him about it in an radio interview. Nobody even bothered to relay that info to Tom before he took to the field in the second half? Not even the Patriots-employed ball attendants whose duties include making sure nobody altered the footballs that were, before halftime, perfect (just the way Brady liked them)? And now Belichick, who a few days ago had no clue about air pressure in footballs, is now giving science seminars to the press on air pressure in footballs? Face it, Brady and Belichick are liars and the SNL actor's impression of Brady was pretty dead on.
And yes, there are more important things going on in this country and the world. But not in the sports world. In the sports world, The Super Bowl and associated stories are "hugh" sports stories. Keeping it in context is important.
Of course, Patriot fans would like to think it's the most important thing happening in the world and they get very petty and downright ugly to those who don't bow at the altar of Belichick and Brady. They are rabid and pretty sick individuals and probably the main reason why other fans do not like the Patriots. If the Pats win you can gaurantee it will be the most important thing going on in the world from a Masshole's perspective. But look at their poor lives... that's all they have. So at least they will have something to keep their pitiful hearts warm until the snow melts in June... :-)