The New York Giants fell victim to the aggressiveness of the Tennessee Titans. The Giants were called for five unnecessary roughness calls and one chop block. The Titans try to get you to play that game. They play on the edge and do a lot of pushing and shoving after the play is over but not enough to draw a flag. They want their opponents to retaliate. It gets you out of your game.
It is never smart to retaliate, as more often than not it is the second guy that gets caught. The Titans have a history of doing this — their team reflects the personality of their coach. Tennessee needs to be careful, though, as these things have a way of catching up to you.
from Mike Pereira at http://msn.foxsports.com/nfl/story/tennessee-titans-play-through-the-whistle