No shit they aren't cheering for us asswipe--that is a different conversation altogether.
And as for the news story: Iraqi news shows them pretty happy with the lynching as well. A little quote from al Jazeera :
In Sadr City, a Shia area of Baghdad, people danced in the streets while others fired guns in the air to celebrate the former leader's death.
You can read all you want here:
http://www.world-newspapers.com/iraq.html