There are a lot of mysteries surrounding the firing of Fox New's Tucker Carlson. Still, according to a report, executives at the network prepared beforehand to deal with their primetime host if he badmouths his former employer after he was dismissed. Executives reportedly possess a dossier of alleged dirt on Carlson in case he attacks the network. Rolling Stone reports: But if Carlson attempts to torch the network he's leaving, Fox is prepared, the sources say. Eight people familiar with the situation tell Rolling Stone that Fox News and its communications department — long led by the notoriously aggressive Irena Briganti — have assembled damaging information about Carlson.