A great water tollway, often called the "Big Ditch," links the Atlantic and pacific oceans. It weaves across a strip of tropical land where the Isthmus of Panama narrows in the shape of a long flattened letter S. The fame of the Panama Canal is not in its size, since it is only about 51 miles long. The Big Ditch is an engineering triumph over nature. It has also been a major influence on world trade. …showed first 75 words of 3050 total…

…showed last 75 words of 3050 total…defense of the canal. The Panama Canal Commission, an agency with both United States and Panamanian membership, replaced the Panama Canal Company. The United States flag could be flown only at the commission's headquarters and at other specified locations. Panama began to assume the governing responsibilities of the former Panama Canal Company. Although Americans employed by the commission continued to have the protection given to United States citizens abroad, they became subject to Panamanian law.