For the second time in a week, a live primetime event showcased a message against domestic violence. On February 1, it was the NFL’s PSA during the Super Bowl on NBC, and tonight it was President Barack Obama during the Grammys on CBS. In April last year, Obama joined Vice President Joe Biden and Hollywood folks including Daniel Craig, Steve Carell, Benicio del Toro, Seth Meyers and Dule Hill for a PSA aimed at protecting people from sexual assault.