A Mormon businessman is planning to build a futuristic multi-million dollar city in the middle of rural Vermont based on 180-year-old plans drawn up by his religion's founder. David Hall, 69, plans to construct a 20,000-home city around a monument to Joseph Smith, founder of the Church Of Jesus Christ Of The Latter Day Saints, near the town of Lebanon, central Vermont. The layout of his proposed 5,000-acre metropolis would be based on plans Smith drew up in 1833 for the city of Zion, which he originally planned to construct in Missouri. . . . Other revolutionary ideas include foam-flushing...