Want to watch better-quality PBS Video? Sign in to access higher-quality streaming!
Assessing the Gap Between Twitter Opinion and Poll Data
- Aired: 03/12/2013
Report Video Problem
Watch videos from your favorite PBS KIDS shows with the PBS KIDS Video app for your tablet or phone.
Bring home the complete collection: DVDs, Blu-rays, books, gifts and more. Visit ShopPBS.
helps all of us explore new worlds and ideas. Give Now