Why might Americans have felt threatened by foreign ideas? Write a short paragraph discussing at least two reasons.

Possible reasons:
- They were different from American ideas.
- They did not fit with American government and society.
- Socialists and anarchists were seen as unpatriotic (opposed the war).
- Anarchists believed in violence and had targeted Americans with bombs.
- After the war, Americans were distrustful of foreigners and their ideas.