Side i must be overly cautious, not that we have fallen short. >> that was the superintendent of austin schools here in dallas. the superintendent says he's not putting a timeline on how long the mask requirement will be in place. he says it will be completely directed by how quickly the number of hospitalizations in the situation in this surge improves. >> ed lavandera, rosa flores, thank you. joining us now is dr. peter hoetz from the center of vaccine development. >> in health in orlando, florida. you're in the thick of it. how dire is that availability where you are right now and how does ...