By Glen Hallick Glacier Farm Media MarketsFarm – The Canadian dollar fell back on Tuesday morning, as trading resumed following the New year’s holiday. As of 8:33 am CST, the loonie was at US$0.7508 or C$1.3317, compared to Friday’s close of US$0.7561 or US$1=C$1.3226. On the U.S. Dollar Index, the greenback advanced 0.796 of a