q10 and seekingferret, you'll want to read this.
The US State Department is proposing a new Biographical Questionaire for everyone applying for a passport. The form would require all citizens to provide the name and contact info of all previous employers, the address of all previous residences, and addresses of all immediate family members (parents, step parents, siblings) and their citizenship status. In addition, naturalized citizens will need to provide the address of their place of birth, and anyone not born in a medical facility will also need to provide their mother's residence a year before and after your birth (presumably so the government can track those citizen children of fence-hoppers who wish to travel abroad), and contact info for witnesses (presumably so the government can strip your citizenship if you don't provide the info or if they're illegal immigrants who the government can bully into recanting the story of your birth in the US).
A lot more info is available here, including the full form and links to submit comments:http://papersplease.org/wp/2011/03/18/state-dept-proposes-biographical-questionnaire-for-passport-applicants/
The comment I submitted:
The information requested by this document is ridiculous, and the gathering of the information is prohibitively difficult to obtain. I am only 33 years old, but I have had six employers in five different states and it would take me around an hour to track down all their contact information. In addition I have lived at somewhere between 10 and 20 different residences and it is not possible for me to find all those addresses. This high number of jobs and residences is primarily a result of my being in academia, and this form is systematically biased against academics and will stifle international cooperation and research as a result. In addition, it will seriously hurt naturalized citizens and US-born citizens with foreign parents. There is no need for this level of detail unless the government is deliberately attempting to prevent the movement of it's citizens, in violation of the UN charter of basic human rights.
Edit: There is some question about whether this policy might only apply to people unable to provide traditional forms of proof of US citizenship, or whether it would really be all US citizens looking for a passport. There is also some question about the validity of the supposed form hosted at the above link. Unfortunately the .gov website doesn't actually contain any information about what it is we're supposed to be commenting on - what is the form, who would it apply to, etc.