After the 9/11 attacks, people from all over America headed to New York City, wanting to help in any way they could. Since then, New Yorkers like Charlie Sadler have been working to return the favor. At a recent barn raising in Bethel Acres, Oklahoma, CBS News found Sadler working around the clock. What those toiling around him shared in common, he said, was "a big heart and a great sense of humor." More.
Volunteers pay it forward, years after 9/11