LOS ANGELES (AP) - An Arab company's potential takeover of some marine terminals at six major ports on the East Coast has raised questions about foreign operations at seaport facilities. Such arrangements have been commonplace at West Coast ports for years. Most of the cargo that enters the country comes through huge ports in Los Angeles, Long Beach, Oakland and the Seattle-Tacoma area of Washington. Each has marine terminals operated by foreign shipping lines - many from Europe and Asia. "On the West Coast, almost all the ports have their terminals operated by foreign companies," said Ivan Eland, senior fellow...