>> this is wake up call for all of our builders, do proper testing. make sure the complaints of repeated smoke alarms going off without any real smoke or fire. we need to make sure these systems operate because they save lives. >> so many lives lost here. critical staffing shortages at hospitals beginning to emerge around the country as the omicron variant pushes the health care system. look at those numbers. coronavirus hospitalizations approaching record levels in the u.s. this is notable. more children, many too young to be vaccinated are ending up in the hospital. >> that's also leading to staffing shortages nationwide as well. also this morning, fans remember bob saget. the actor known as america's dad for his role as danny tanner. he's died at the age of 65 years old. let's begin this morning with cnn national correspondent. she's outside the apartment