Democratic and Republican politicians on Thursday both promised to enact new federal laws by the end of the year that would restrict some commercial uses of Social Security numbers, which are often implicated in identity fraud cases. In both the House and the Senate, there are at least three pieces of pending legislation that propose different approaches to <A HREF="http://news.zdnet.com/2100-1009_22-6071441.html?tag=zdnn.alert">restricting the use and sale of SSNs.</A> Politicians have expressed astonishment at what they see as a rising identity fraud problem, frequently pointing to a 2003 Federal Trade Commission survey that estimated nearly 10 million consumers are hit by such intrusions each year.