Home/American Shipper/MSC truncates USEC-Panama feeder again American Shipper MSC truncates USEC-Panama feeder again FreightWaves Staff · Wednesday, June 13, 2012 Mediterranean Shipping Co. pulls a call at Cristobal on its U.S. East Coast/Panama feeder after shortening the service’s rotation in February, with the round trip voyages cut from 21 to 14 days.