What is the news mainly about? [originaltext] Traffic is heavy, but steady al

Traffic is heavy, but steady along most major highways leading back into Houston. On Monday, authorities want only people from certain less-affected areas to return. People from areas farther south are supposed to return during the next two days.
   In the flow of vehicles, there are people trying to get back to all areas evacuated before the storm, including some of the areas that were heavily damaged, like the cities of Port Arthur and Beaumont.