Answer:
They were helpful in spreading necessary information across the empire.
Answer:
States have no power by taxation or otherwise to impede or control the laws of the federal government and thus the law imposing a tax on the bank of the united States is unconstitutional and void
Answer:
In his 'letter from Birmingham jail', King wrote of his Christian duty “to carry the gospel of freedom” across America (King 1963:78). He compared civil rights protestors' acts of civil disobedience to the resistance of biblical dissidents, Shadrach, Meshach and Abednego.
Explanation:
There were lots of foreign changes that presented challenges for the US. I'll give you a few examples from different time periods. First would be when England wanted to tax the Americans in the Revolutionary period. They did this to try and restrict America's freedom. Another example would be that Russia had spies during the cold war period. This was to gain intelligence of the US war plans. Also when Germany sent the Zimmerman Telegram to Mexico during the WWII period. This was to get Mexico to launch a surprise attack on the US.