Rogers Cadenhead: Police Trapped Thousands in New Orleans

As the situation grew steadily worse in New Orleans last week, you might have wondered why people didn't just leave on foot. The Louisiana Superdome is less than two miles from a bridge that leads over the Mississippi River out of the city.

The answer: Any crowd that tried to do so was met by suburban police, some of whom fired guns to disperse the group and seized their water.

Around 500 people stuck in downtown New Orleans after the storm banded together for self-preservation, making sure the oldest and youngest among them were taken care of before looking after their own needs.