As long as your are travelling outside of the Unoted States boarder, then you do need a passport.
No you do not need a passport to travel from the us to puerto rico. you do need a visa.
No. but to travel out or into the country they do.
If you are a US citizen, you will need both a valid US passport and an Australian ETA visa to travel to Australia.
You'll need a US PASSPORT to return to the US.
No if she has a passport she could travel anywhere without a USA passport
If you are coming from abroad then yes, you still need your passport. The passport is a very important travel document which you should always carry when you travel in and out of the US.
You need the passport of the country of which you are a citizen. You cannot have a US passport until you are a US citizen.
Yes You Do
Yes, you always need a passport when you travel outside your country of origin.
Yes, you meed a passport whenever you travel!
No, you do not need a passport to travel to the US Virgin Islands. This information is available from the US Virgin Island's official website http://www.usvitourism.vi/
Absolutely, you need a passport to travel from one country to another.