Is it illegal to fly a foreign flag in the US?

Related questions

1. Is Catalonia separate from Spain?
2. What is England known for?
3. Are you supposed to touch the American flag?
4. Do you need planning permission to fly a flag?
5. Does Catalonia have its own flag?
6. Did England change its flag?
7. Why does Barcelona have an English flag?
8. What does it mean when the United States flag is upside down?
9. Are you supposed to burn a flag that touches the ground?
10. Is it legal to burn a flag in public?

Tags

1. #including
2. #public
3. #flown
4. #forbid
5. #schools
6. #displaying
7. #require
8. #federal
9. #institutions
10. #foreign
11. #requires