Department of Immigration in Tunisia
The following are useful links
Obtaining a passport
http://www.worldtravelguide.net/tunisia/passport-visa
A Laissez-Passer
http://www.mofa.gov.bh/Default.aspx?tabid=6399&language=en-US
Online Visa Application
Visiting Tunisia
http://goafrica.about.com/od/tunisia/a/tunisiatips.htm
Becoming a citizen
http://www.tunisia-live.net/2011/11/24/visas-for-tunisia/
Green Card
http://tunisia.usembassy.gov/diversity-visas.html