The New York Times
http://www.nytimes.com/2010/02/14/business/yourtaxes/14disclose.html
Of course, with so much data stored electronically these days, privacy is a significant worry. In a 2008 paper, Paul M. Schwartz, a professor at the School of Law at the University of California, Berkeley, concluded that tax returns would “increasingly be subject to the same kind of forces, legal and otherwise, as other personal information.” Economists like Professor Kotlikoff say they believe that tax disclosure could simply involve releasing an individual’s income and tax liability — figures that cannot be readily used to steal someone’s identity. All personal information like Social Security numbers, home addresses and children’s names and ages would remain private.