Santorum ad appears to link Obama, Ahmadinejad

What we're watching:

- Santorum ad appears to link Obama, Ahmadinejad

- Sandusky labeled a pedophile in '98 report

- Near-miss for International Space Station

And did you see...

- Boat from Japam tsunami spotted off Canada

- 8 killed in WV house fire

- Santorum looks for rebound in Louisiana

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