do i need a passport when traveling from Los Angeles to Mexico, via cruse ship?

Yes, b/c u r leaving the country!! Good luck getting one. It can take like 6 months!!!!!!

yes

yes

Yep

yes!

Depends on when you are traveling:

"As early as January 1, 2008, ALL persons, including U.S. citizens, traveling between the U.S. and Canada, Mexico, Central and South America, the Caribbean, and Bermuda by land or sea (including ferries), may be required to present a valid passport or other documents as determined by the Department of Homeland Security. While recent legislative changes permit a later deadline, the Departments of State and Homeland Security are working to meet all requirements as soon as possible. Ample advance notice will be provided to enable the public to obtain passports or passport cards for land/sea entries."

I would check with the cruise line and do whatever they say.

If you are traveling outside of the US by sea or by air, you must have a valid passport. This includes Mexico and Canada.

It probably won't be long before you will need them when driving or walking to our neighboring countries. Next will be requirements that you always have Federal identification at all times.

Papers please? Und click your heels ven you hand dem ober!

yes because you are leaving the U.S

yes, they check every time you enter a new country.
They also want to check your background before you enter another country.