An N.Y.P.D. lieutenant apologized to fellow officers caving to pressure and kneeling in solidarity with George Floyd protesters in Manhattan. In a June 1 email to colleagues, Lt. Robert Cattani said he feels like he made a “horrible decision to give into a crowd of protesters’ demands.” Cattani and at least three other police officers conceded to a group of Black Lives Matter protesters on May 31 who chanted “NYPD, take a knee.” The kneeling trend was started by former San Francisco 49ers quarterback Colin Kaepernick in 2016, who knelt during the national anthem as a sign of protest against...