Britney Spears Sends a Cease-and-Desist to Stop Sister Jamie Lynn From Speaking ‘Derogatorily’Britney Spears Sends a Cease-and-Desist to Stop Sister Jamie Lynn From Speaking ‘Derogatorily’The letter demands that Jamie Lynn Spears stop 'publicly airing false or fantastic grievances' about her famous older sister.Carena LiptakCarena Liptak