http://www.youtube.com/watch?v=cv85tvudi7Y
This video is simple and straight to the point. Gotta love how the free will defense is condensed to this simple video. 
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Like a go/stop sign, God's grace helps guide us to follow the right path because He cares about our safety. As a Walking Christian, our mission is to study these signs and obey them to the best of our ability in everyday life.