We have been assisting Christian Mission Groups for 20 years with obtaining U.S. Passports and more importantly the travel visas and restrictions to remote areas that many church groups visit. Our staff is very experienced with the details involved in getting visas approved. Those small details can get a visa approved instead of rejected.
http://www.passportworld.com
If you are not doctrinally sound, it is better for you to stay home and not talk to anyone about your faith.
http://www.gotquestions.org/sound-doctrine.html
http://www.gotquestions.org/faith.html