While popular images of Cold War-era spies feature high-stakes missions, ... the German V-2 rocket, worked with the US military to develop ballistic missiles.
A. they wanted to prevent abolitionists from controlling congress.
It has helped let us learn more about each other's cultures and lifestyles
Ensures government remains fair and accountable by creating checks and balances on the use of power. It is essential under the rule of law that the use of power is lawful, and can be challenged. Power is balanced between the Judiciary, Legislature and Executive, so each can act as a check on the power of the other.