WASHINGTON, July 22 (Yonhap) -- Rep. James Leach has obtained a visa to enter North Korea and is expected to travel there late next month, multiple sources said Thursday. Two-term Congressman Leach (R-Iowa). chairman of the House Subcommittee on Asia and the Pacific, had shown interest in visiting the North in the past. His office declined to comment, but one source, speaking on condition of anonymity said, "I am glad he is going." A State Department official, also asking not to be named, said the general practice of the department is to "encourage" congressional visits. Another source called the...