I would argue that the primary difference was the introduction of nuclear weapons after WWII--meaning that the spread of communism could actually take over the world as opposed to just causing unrest in the US.
The correct answer is Appoint a dictator to rule instead of themselves
The consul held the highest elected political office in ancient Rome and was considered the highest office to which a politician could be elected to. In times of crisis, they were allowed to name a dictator to rule for a period