Baghdad, Iraq (CNN) -- Iraqi forces have tightened security in and around the Shiite holy city of Karbala as tens of thousands of pilgrims pour in ahead of this weekend's culmination of a revered mourning period.
MORE: http://www.cnn.com/2012/01/12/world/meast/iraq-arbaeen/index.html?hpt=imi_c2
See also...
20 wounded in Iraq double bombing
http://www.cnn.com/2012/01/13/world/meast/iraq-violence/index.html?hpt=imi_c2
