Интересно, как Ваш вопрос связан с моей темой?
А по теме - SSN, как я понимаю, имеют право получить только те, кто теоретически имеет право на работу в США (легально я имею в виду).
http://ssa-custhelp.ssa.gov/cgi-bin/ssa.cfg/php/enduser/std_adp.php?p_faqid=76&p_created=955479030&p_sid=6aSBPdXj&p_accessibility=0&p_redirect=&p_srch=1&p_lva=&p_sp=cF9zcmNoPTEmcF9zb3J0X2J5PSZwX2dyaWRzb3J0PSZwX3Jvd19jbnQ9NzIsNzImcF9wcm9kcz0mcF9jYXRzPSZwX3B2PSZwX2N2PTEuMTYmcF9wYWdlPTE!&p_li=&p_topview=1
Social Security number when you have a temporary visa.
[i] Question
I am in the U.S. on a temporary visa. Can I get a Social Security number?
Answer
In general, only noncitizens who have permission to work from the Department of Homeland Security can apply for a Social Security number.
If you do not have permission to work, you may apply for a Social Security number only if the law requires you to provide a Social Security number to get general assistance benefits you already have qualified for.
Lawfully admitted noncitizens can get many benefits and services without a Social Security number. You do not need a number to conduct business with a bank, register for school, apply for educational tests, obtain private health insurance, apply for school lunch programs, or apply for subsidized housing. You cannot get a Social Security number for the sole purpose of obtaining a driver’s license. See Application for a Social Security Card (SS-5).
For more information, see Social Security Numbers For Noncitizens ( Publication No. 05-10096) or Documents You Need for a Social Security Card.[/i]
И у меня большие сомнения, что будучи в статусе турист (или как он там точно называется) Вам сделают SSN.
Вместе с тем, Администрация SSN считает, что алейны могут и без него жить:
http://www.ssa.gov/pubs/10096.html
[i]How do I apply for a Social Security number and card?
Unless you are a noncitizen who wants to work in the United States, you probably do not need a Social Security number.
Generally, only noncitizens authorized to work in the United States by the Department of Homeland Security (DHS) can get a Social Security number. Social Security numbers are used to report an individual’s wages to the government and to determine a person’s eligibility for Social Security benefits. You need a Social Security number to work, collect Social Security benefits and receive some other government services.
Lawfully admitted noncitizens can get many benefits and services without a Social Security number. You do not need a number to get a driver’s license, register for school, obtain private health insurance, or to apply for school lunch programs or subsidized housing.
Some organizations use Social Security numbers to identify you in their records. Most, however, will identify you by some other means if you request it.
We cannot assign you a Social Security number solely so you can get a driver’s license or a service that requires a credit check.
Although many companies, such as banks and credit companies, may ask for your Social Security number, you are generally not required to provide one if you don’t have one.[/i]
Прямо таки Ваш случай практически.