Jim And Jenny March For 'Green Vaccines'
Rally Held On Grounds Of U.S. Capitol.
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ET takes you to Wahsington, DC, where JIM CARREY and JENNY McCARTHY lead a march and rally aimed at drawing attention to the issue of toxins in children's vaccines.
McCarthy, who wrote the best-selling book Louder Than Words: A Mother's Journey in Healing Autism, has become a national advocate for groups trying to eradicate toxins from vaccines. The actress and author has an autistic son.

