I don't know what is. These guys are just big hitting, ball hawks that can make a play at any given time. That INT by Harrison while the Chargers were going in for a possible score was absolutely monster. As Tomlin calls them, "splash plays". If he isn't the NFL defensive player of the year there is something seriously wrong with the NFL besides everything else that is already wrong with it.
Polamalu's int on the opening drive of the game was one of the most spectacular catches I've ever seen for an INT. The way he wrapped his fingers under the ball and kept it from hitting the turf was nothing short of amazing, it's so good to see him back to form. Wood made some nice pass defenses too. It was really just such a team effort that really kept this game close enough for our offense to finally put a full drive together to win the game. Had the Chargers scored on that final possession I don't know if we'd have been able to drive the length of the field for a TD and actually score or not. Willie did score but again was called back for a phantom holding penaty.
Anyways though, Lebeau has to just be walking cloud 9 watching these guys play defense and they just continue to elevate their game. If the Offense ever plays half as good as the D does we'll have a championship caliber team.