http://news.yahoo.com/s/ap/20060329/ap_on_re_as/afghan_christian_convert

"KABUL, Afghanistan -    Afghanistan's parliament demanded Wednesday that the government prevent a man who faced the death penalty for abandoning Islam for Christianity from being able to flee the country. "



http://www.un.org/Overview/rights.html
"Article 13.
....
(2) Everyone has the right to leave any country, including his own, and to return to his country."

"Article 18.
Everyone has the right to freedom of thought, conscience and religion; this right includes freedom to change his religion or belief, and freedom, either alone or in community with others and in public or private, to manifest his religion or belief in teaching, practice, worship and observance."