Mercy: Compassionate treatment, especially of those under one's power Media outlets reported yesterday that the Minnesota Vikings are trading all-pro wide receiver Percy Harvin to the Seattle Seahawks. Based on Harvin’s history, it is almost as if fate is telling the NFL it is time to change one of its most unjust and irrational policies. [caption id="attachment_6049" align="alignleft" width="270"] Percy Harvin (AP)[/caption] It’s no secret that Percy Harvin has used marijuana. Percy tested positive…