Parts of the city have become a target-rich environment for human remains. It's becoming a very difficult task.

Our squad members are getting access to trauma and grief counselors. It's becoming a very difficult task.

Parts of the city have become a target-rich environment for human remains. We're just now getting into the areas that experienced the most rapid inundation.

In a difficult and uncertain environment, Renault remains on track to meet its 2012 objective.

The search for knowledge is a long and difficult task.

much about Kim -- and what he may do -- remains difficult to fathom.