Thousands of Haitians living in temporary camps from the earthquake are now forced to find new shelter as tropical storm Tomas makes it way to the Caribbean nation. Tonight, we find out how a country still devastated from January's earthquake is bracing for another blow.

The "Autism 2010" international conference is underway in downtown Toronto. The event draws professionals, parents and researchers from around the world, to look at the leading research and clinical practices for autism. This evening, Mark speaks to Dr. Temple Grandin, one of TIME magazine's top 100 most influential people of 2010. And VJ Marcia Connolly brings us a touching story about a 13-year-old boy with Asperger's syndrome.

The Happy Meal may become a little less happy. The city of San Francisco recently passed a law which holds kids' meals with toys to new nutritional standards. Only healthy food is allowed to be sold with a toy. Tonight, how companies market to children.

Related: Sally Davies "Happy Meal Project"

Join Mark and Reshmi live at 8:00 p.m. ET.