"When it’s hard to talk, it’s up to us to listen." So says the closing line in a new 60-second public service announcement, a shorter version of which is set to air this Sunday during the first quarter of the Super Bowl. The PSA is the latest effort by the National Football League in its recent efforts to help curb domestic violence. But while the spot is certainly attention-grabbing, it is likely to leave viewers wondering who exactly is the "us" that is supposed to be listening.