Full Transparency?...

http://www.nytimes.com/2008/03/14/us/politics/14campaign.html?_r=1&oref=slogin

In addition to his tax returns Senator Obama has just released his congressional earmarks for the last three years and has asked Senator Clinton to do the same. This combined with her reluctance to release her tax returns is leading towards a trend of not-so-full-disclosure and could potentially indicate that she is hiding something. First off I find it frustrating that legislator's earmarks are not public domain. Are there any arguments for keeping them private? Secondly, obviously Clinton has the right to keep her tax returns private, but considering that she is running for President of the United States shouldn't she release them?