According to this article called Missionary: Western Europe's Darkness Foreshadows America's Spiritual Decline, "A Southern Baptist missionary stationed in Madrid, Spain, contends that Western Europe is currently the hardest mission field on Earth. Chad, a 32-year-old Christian worker abroad, says the hostility to Christianity has become so severe in Europe that he does not want his last name published."
 
FULL STORY at
http://headlines.agapepress.org/archive/5/312005f.asp