A short time? It's not so easy, I'm afraid:
http://www.freerepublic.com/focus/f-news/1032040/posts
WRONG NUMBERS: SOCIAL SECURITY DOESN'T MATCH UP (BECAUSE OF ILLEGAL ALIENS)
The Wall Street Journal | 28 November 2003 | Eduardo Porter
A government effort to distribute hundreds of billions of dollars of unallocated Social Security contributions is instead pushing many immigrants out of jobs, according to immigrant-rights groups. Furthermore, it isn’t solving the problem of where the money should end up. The Social Security Administration is trying to distribute money from its "Earnings Suspense File," comprising contributions that can’t be matched up with a proper Social Security number. That file mushroomed in the 1990s, fueled by a fast-growing work force of illegal immigrants using fake Social Security numbers to get jobs. By the end of the 2000 tax year, the file contained $374 billion.
In 1994, the agency began sending out "no match" letters warning employers that they had incorrect Social Security numbers on the payroll and should straighten out their files. Last year, the agency sent about 950,000 letters, each listing as many as 500 bad numbers. But according to a report by the University of Illinois at Chicago and several immigrants-rights groups, the agency has had little success in identifying owners of the misallocated funds. The suspense file has kept growing, by $30 billion in 1998, $40 billion in 1999 and $50 billion in 2000.
Instead, the report said, many employers have simply fired the workers targeted by a no-match letter. In other cases, unauthorized workers have quit after learning of the letters—fearful that immigration authorities are after them...
etc. [excerpted]