[E. Pluribus Unum]

So Bill moves to Spain or Italy, renounces his US citizenship, and applies

We should be so lucky.

[qwertyz]

Check out the UN Charter online--superfically, nothing seems to prohibit Clinton's appointment to Secretary General. The biggest drawback is the job actually involves work (see: http://www.un.org/News/ossg/sg/pages/sg_office.html)