Since the topic is forever ongoing, we sometimes tire of discussing the roles that speculators play in markets and in politics. We are sure that clients are also tired of our discussions. However, the topic will not die, and in fact it takes on new life during a presidential election year. That was certainly the case in 2008 when prices for food and gasoline were rising, and more of the same is promised for 2012 with gasoline flirting with $4.00 per gallon at the pump and food prices again on the rise.Republicans have been hammering President Obama over high gasoline prices and his rejection of the Keystone pipeline plus the limitations his administration has placed on new drilling for oil offshore and in the Arctic. A politically neutral...