Before revision: North America US–Canada In early 2005, a group of Canadian drug smugglers took up the idea, and constructed a tunnel between a greenhouse in Langley, British Columbia and the basement of a house in Lynden, Washington, which lay across the ditch marking the Canada–US border (the .
After revision: North America US–Canada In early 2005, a group of Canadian drug smugglers took up the idea, and constructed a tunnel between a greenhouse in Langley, British Columbia and the basement of a house in Lynden, Washington, which lay across the ditch marking the Canada–US border .