CAIRO (Reuters) - Egypt plans to build a $1 billion tunnel under the Suez Canal at Port Said and will begin seeking finance as soon as the designs are completed, Al-Akhbar newspaper on Monday quoted the investment minister as saying. The tunnel, to be built 19 km (12 miles) south of the Canal's northern entrance, will have 3 passageways, one for rail and two for cars, the newspaper quoted Mahmoud Mohieldin as telling a conference in Dahab in the eastern Sinai Peninsula. The conference was called to discuss investment in the cities along the canal and in the Sinai, which...