PBS NewsHour

Autism Now: Exploring the 'Phenomenal' Increase in U.S....

Clip: 04/18/2011 | 12m 15s

In the second report in his Autism Now series, Robert MacNeil investigates why the number of children with autism is increasing in the U.S. MacNeil meets children at different points on the autismspectrum and gets several views on the increase in prevalence -- from better diagnosis to a variety of environmental factors.

Aired: 04/18/11

Rating: NR

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