Members of the National Guard fill in as substitute teachers in New Mexico
National Guard Specialist Austin Alt holds open the classroom door as the next class arrives while he fills in as a substitute teacher due to staffing shortages caused by the coronavirus disease (COVID-19) pandemic and other non-illness related absences at Pojoaque Valley Middle School in Pojoaque, New Mexico, U.S., January 28, 2022. REUTERS/Adria Malcolm
