It's quite apparent that Iraq's minority sunni population and their enablers in the islamist world aren't about to forgive the Iraqi's who are viewed as committing shirk for participating in elected governments and associating with the infidel.

At least 36 killed in 20 bomb blasts in Iraq

http://worldnews.msnbc.msn.com/_news/2012/04/19/11283083-at-least-36-killed-in-20-bomb-blasts-in-iraq?lite -

More than 20 bombs hit cities and towns across Iraq Thursday, killing at least 36 and wounding more than 100, police and hospital sources said, raising fears of sectarian strife in a country keen to show it can now maintain security.

In Baghdad, three car bombs, two roadside bombs and one suicide car bomb hit mainly Shiite areas in what looked like coordinated attacks, killing 15 people and wounding 61, the sources said.

Two car bombs and three roadside bombs aimed at police and army patrols in the northern oil city of Kirkuk killed eight people and wounded 26, police and hospital sources said.