Onlookers gather around a destroyed car at the site of a bomb blast at St. Theresa Catholic Church in Madalla, Nigeria, on Sunday, Dec. 25, 2011. (AP Photo/Sunday Aghaeze)

Photo by: Sunday Aghaeze

Onlookers gather around a destroyed car at the site of a bomb blast at St. Theresa Catholic Church in Madalla, Nigeria, on Sunday, Dec. 25, 2011. (AP Photo/Sunday Aghaeze)