The 5:30 A.M. Warrior Call: Does the U.S. Need 20 Million Tests Per Day to Reopen? (4/21/2020) Posted byJoe De Sena April 21, 2020 Leave a comment on The 5:30 A.M. Warrior Call: Does the U.S. Need 20 Million Tests Per Day to Reopen? (4/21/2020) That’s what experts at Harvard believe.