Saved by God?

[superleeds]

A women survived Katrina by clinging to a tree altho she lost all her possessions. She was interviewed afterwards and put her survival down to the intervention of God. If she believes God has this ability, why does she not feel anger that he thru this disaster at her in the first place?

If god intervenes, then surely he must intervene totally. This is something I have never been able to understand. How do the religious reconcile that some are saved and some are not?