v. United States District Court, 920 17.2d 1462, 1465 (9th Cir. 1990) ("plea agreements have typically been open to the public"); United States v. Kopistra, 796 F.3d 1390, 1390-91 (11th Cir. 1986) (documents relating to defendant's change of plea and sentencing could be sealed only upon finding of a com