of course you do if not from u.s.a. since 911 rules have change for the better
US citizenship.
You'll need a US PASSPORT to return to the US.
You Don't. You need to have a passport in order to have a passport number.
No you do not need a passport to travel from the us to puerto rico. you do need a visa.
You need a passport to go anywhere.
No, but you will need a passport to get back into 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 not need a passport to fly to the US Virgin Islands if you are a US citizen.
Yes, you do not need a passport to travel to the US Virgin Islands if you are a US citizen.
Yes, you do not need a passport to visit the US Virgin Islands if you are a US citizen.
Yes, you generally need a passport to leave the US and enter another country.
No, you do not need a passport inside the US but you will need a valid picture ID.