This week's Open Mic guest is Ben Kruger, senior vice president at Roeslein Renewables.  The International Maritime Organization is set to vote on policy that would embrace greater use of renewable fuel in the global shipping industry. Kruger says this move would present a tremendous opportunity for the domestic renewable fuel industry and biodiesel from soybeans and other sources. Kruger says a positive vote by the IMO and steps by Washington to pursue the opportunity could bring $5 to 10 billion dollars to the rural economy.