1.   But, like many people struggling with addiction, compulsive behavior or a simple bad habit, he is at a loss to explain his inability to stop.

2.   Controllers explained their inability to establish radio contact and told the crews to report back once they landed.

3.   Still, she said, the Tigers may be weakened militarily, which could explain their inability to recapture Jaffna.

4.   That was a man, and maybe his physical efforts off the court explain his inability to conquer Bill Russell of the Celtics.

5.   There is also an essential sweetness to him, which goes some distance in explaining his inability to kill.