When will the 500 million free tests that Biden promised be available?

By BY MICHAEL D. SHEAR AND SHERYL GAY STOLBERG from NYT World https://www.nytimes.com/live/2021/12/23/world/omicron-covid-vaccine-tests/when-will-the-500-million-free-tests-that-biden-promised-be-available?partner=IFTTT