Thanks.
http://www.boston.com/sports/football/patriots/2015/01/21/how-the-patriots-could-have-cheated-without-letting-air-out-the-ball/Eocm5m29nIlh0HRBjFWsYO/story.html
A "reciprocating piston" compressor creates hundreds of pounds of friction as it works. On the first ball inflated using this device, the internal parts wouldn't have heated up enough to much change the air temp, but by the 2nd or 3rd ball, the compressor is pumping 115-to-120-degree (F) air into the ball.
Inflate a ball to 12.5 psi with 120-degree air and then put it in a 50-degree stadium. In 30 minutes, the ball will be 1.6 psi lower.
Except for the first ball, that is, which was inflated before the machine warmed up.
Initial reports claimed that "11 of 12 balls used by the Patriots" were found deficient by "around 2 psi."
All I'm saying is that there are more explanations out there than "They cheated again!" Especially given that they never actually cheated in the first place. They were made an example of by the league for doing out in the open what everyone else was doing behind cover.
Patriots Haters will never listen to logic on this point, but who cares what Haters think? They all suck squid mung anyway.