What is the current state of the law on qualified immunity for civil damages in civil actions against a federal government official?

In addition, Government officials enjoy qualified immunity from civil damages unless their conduct violates "clearly established statutory or constitutional rights of which a reasonable person would have known." Harlow v. Fitzgerald, 457 U.S. 800, 818, 102 S.Ct. 2727, 2738 (1982). "Qualified immunity balances two important interests - the need to hold public officials accountable when they exercise power irresponsibly and the need to shield officials from harassment, distraction, and liability when they perform their duties reasonably," Pearson v. Callahan, 555 U.S. 223, 231, 129 S.Ct. 808, 815 (2009), and protects "all but the plainly incompetent or those who knowingly violate the law," Malley v. Briggs, 475 U.S. 335, 341, 106 S.Ct. 1092, 1096 (1986).