>> laura: "seen and unseen," the big cultural stories of the day. we turn to arroyo. raymond, we could call this one heard and unheard i think. what's going on? >> we always look for cultural patterns when we build this segment. over the weekend at college games, concerts, even on the streets of new york, and increasingly familiar chant can be heard. >> [bleep] joe biden. [bleep] joe biden. [bleep] joe biden. [bleep] joe biden. >> for those whose volumes are too low, they're not screaming "good luck joe biden" but it