Import cargo volume at the nation’s major retail container ports is expected to be up 13 percent in March compared with the same month a year ago, and double-digit increases are expected to continue through the summer as the U.S. economy begins

Import cargo volume at the nation’s major retail container ports is expected to be up 13 percent in March compared with the same month a year ago, and double-digit increases are expected to continue through the summer as the U.S. economy begins