He used them to develop the plot. He was a master at plot development. Bierce loved to develop the plot through a sequence of events even if it made the reader uncomfortable.
The correct answer is: because he can react to emergencies more quickly than Congress.
The president can appropriate government money in times of a disaster, to react to emergencies quicker than the Congress.
This situation only happens in times of emergency, in which the President is allowed to override the Congress and deliver executive orders without the Congress permission.
These emergencies are declared when: there is an armed conflict, a natural disaster, civil unrest, etc.
Went in to the war and dropped an atomic bomb on Hiroshima
