"No-knock" search warrants, which allow police to force their way into a home with the element of surprise, have attracted criticism since the height of the "war on drugs" in the 1980s and 90s. But it wasn't until this year that the death of Breonna Taylor galvanized that criticism into a national movement to ban the raids.

It may only be weeks until a COVID-19 vaccine is approved for use in the U.S. Pfizer and its partner BioNTech asked the Food and Drug Administration to grant an emergency use authorization for their vaccine a week ago, and Moderna is expected to follow suit in coming days.