Help with american passport?

my niece has a little girl and she whats to take her with her to a trip she is going to take to mexico she is wondering if she needs to get a passport for her little girl too or if there is another way to do it with out it and just use the birth certificate
now that everybody has to show a passport when you come in to the united states

Answer:
She can go to the post office and take the girls birth certificate. They can process her passport right there.It will take a few weeks to get it so she needs to start early. Everybody needs passports now. Even children.

http://travel.state.gov/passport/get/min...
You will NEED a passport!! There is no other way to do it.
she should just get her a passport.
Until next year, when you are crossing the Mexican boarder by foot or car you do not need identification. The Law states that it is sufficient to "declare" your citizenship upon re-entry.
Under the new rules enacted in January: EVERYBODY needs a passport.
I do recmmend that you niece get a passaport for her little girl because in the way back she might not be able to Identificate her at the inmigration entrance just with a birth certificate...I got one for my little one and no problems at all...So she needs one for her girl...Anybody can live but geting back in everybody needs a form of ID and that is a passaport so B Certif don't work as a form of ID...
If you are flying internationally, you will need passports, if you cross through a land border on foot or a car, or bus, you will need to have proper identification upon re-entry. You can use your birth certificate and a state issued or gov't identification, but you need some form of documents to re-enter. The officer can allow you to enter with only a verbal declaration, but only if the officer believes you, but you need to show proof and the burden of proof lies with the traveler. The way things are now, having some documention, is a must.

The immigration information post by website user , MyTend.com not guarantee correctness

  • Are you sick of hearing about the border patrol?
  • Did the group face prejudice,?
  • what do you think about the green card DV lottery system?
  • How long does it takes to become a USA citizen?
  • how much does it cost in us dollars to renew a passport from africa?
  • illegal immigration.?
  • Do you agree with President Bush on the illegal immigration issue?
  • What is the approximate timeframe of immigrants coming through Ellis Island? (Like the main flow)?
  • African nationality i won Diversify visa lottery, I have degree, cisa,cism and job, should leave all for usa?
  • What are Mexico manufactured goods?