Well the question is slightly vague, you're not giving a time period or the subject at hand. But my best guess is possibly Federalism if we are talking early US.
Decade=10 years
Century=100 years
Millennium=1,000 years
Answer:
French (and Irish?) immigrants.
Explanation:
The alien laws were aimed at French (and Irish immigrants, who were mostly considered pro-French). The Alien and Sedition acts gave more powers to the government to deport foreigners and make it harder for new immigrants to vote. They also restricted the activities of foreign residents in the country, also limiting their freedom of speech and press. This was mainly because of widespread fear of an imminent war between America and France.
John Smith
An English explorer who saved Jamestown.
It could mean many different things.
Explanation:
I think it means that without a check on that power it can't be trusted because powers are often abused.