Mandy Hammes teamed up with agricultural safety teacher Dan Neenan to reach out to farmers and firefighters on grain rescue techniques after her father-in-law was killed in a grain silo accident. Jeff... more 
Mandy Hammes teamed up with agricultural safety teacher Dan Neenan to reach out to farmers and firefighters on grain rescue techniques after her father-in-law was killed in a grain silo accident. Jeff Glor reports. less 
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Sun, Jul 14, 2013 7:50 PM EDT