Air cargo demand took a back seat to passenger growth in 2012, according to numbers recently released by the International Air Transport Association. Last year, passenger demand grew by 5.3 percent when compared to 2011's activity, while cargo declined by 1.5 percent, year over year. The 20-year average for passenger growth is 5 percent. Last year was the second consecutive year of losses for the cargo industry, following a 0.6-percent decline in 2011. In ...