Iraqi police guard the entrance to a Church in Baghdad, Iraq, Friday, Dec. 25, 2009. Christmas is bumping into Shiite Islam's most mournful ceremony this year, forcing Iraqi Christians to keep their celebrations under tighter wraps than usual. An Iraqi police official says a handful of Christians and Shiite Muslims got into a dispute over decorations in a northern Iraqi town during their coinciding religious observance. The official says Iraqi troops have been deployed to the town of Bartela, northwest of Baghdad, after three Christians were injured during the scuffle that erupted Friday. (AP Photo/Karim Kadim)AP – A handful of Iraqi Christians and Shiite Muslims got into a dispute Friday over decorations in a northern Iraqi town during their coinciding religious observances, officials said.