Freight market’s uncertainty, again, plagues U.S. domestic transportation. By Jon Ross Gauging growth in the uncertain 2013 domestic trucking and air cargo market depends a bit on who is doing the predicting. There are minor shades of variation in the outlook for domestic trucking, while analysts all agree domestic air cargo will continue to lose out to surface transportation. At FTR Associates, the company forecasts trucking growth of 2 percent to 3 percent...