The most straightforward theory for Western Rome's collapse pins the fall on a string of military losses sustained against outside forces. Rome had tangled with Germanic tribes for centuries, but by the 300s “barbarian” groups like the Goths had encroached beyond the Empire's borders.
It is the executive privilege that has been interpreted to
mean that a president can shield information from congress as a result of the separation
powers. In the United States, this privilege gives the president and other members
of the executive to refuse subpoenas from the legislative group of the
government to access any information from them. Presidents have the power to
keep confidential information to avoid unnecessary issues that may affect the
government and the country. For example, if there’s an issue with the military
and the president decided to keep this information, then it will be keep.
This is because after winning independent slave trade also was in that event, or because Europeans wanted to influence Christians into Africa.