U-S Senator Chuck Grassley of Iowa is concerned Farm Credit Services is making agricultural loans to foreign entities, and he has introduced legislation to prevent it from happening.  Grassley informed farm news media during his weekly news conference that he has learned Farm Credit Services has approved loans involving farm ground to China.  Grassley says foreign ownership of farm ground hurts American farmers.  The Iowa Republican says Senator Brown of Ohio has joined Grassley to co-sponsor the bill.