the Foreign Policy Association envisioned the highway continuing to link with Nome near the Bering Strait, linked by highway to the railhead at Irkutsk, using an alternative sea-and-air ferry service across the Bering Strait. At the same time the road on the Russian side was extended by building the 2000-kilometer (1250 mi) Kolyma Highway. In 1958, engineer Tung-Yen Lin suggested the construction of a bridge across the Bering Strait "to foster commerce and understanding between the people of the United States and the Soviet Union". Ten years later he organized the Inter-Continental Peace Bridge, Inc., a non-profit institution organized to further this proposal. At that time he made a feasibility study of a Bering Strait bridge and estimated the cost to be $1 billion for the span. In 1994 he updated the cost to more than $4 billion. Like Gilpin, Lin envisioned the project as a symbol of international cooperation and unity, and dubbed the project the Intercontinental Peace Bridge. 21st century According to a report in the Beijing Times in May 2014, Chinese transport experts had proposed building a roughly high-speed rail line from northeast China to the United States. The project would include a tunnel under the Bering Strait and connect to the contiguous United States via Wales, Alaska, along the river to Fairbanks, Alaska, and along the Alaska Highway to Edmonton, Alberta, Canada. Several American entrepreneurs have also advanced private-sector proposals, such as an Alaska-based limited-liability company founded in 2010 to lobby for a cross-straits connection, and a 2018 cryptocurrency offering to fund the construction of a tunnel. In 2005, investor Neil Bush, younger brother of US President George W. Bush and son of President George H. W. Bush, traveled abroad with Sun Myung Moon of the Unification Church as he promoted a proposal to dig a transportation corridor beneath the Bering Strait. When questioned by Mother Jones during the Republican primary campaign of his brother Jeb Bush a decade later in 2015, he denied having supported the tunnel project and said that he had traveled with Moon because he supported "efforts by faith leaders to call their flock into service to others." Technical concerns Distance The straight distance between Russia and Alaska is . If building bridges and using the Diomede Islands, the straight distance over water for the three parts would be , and , in total . Depth of water The depth of the