The Congress for the New Urbanism, www.cnu.org, has released a new video on New Urbanism, highlighting the “greatest threat to our civilization:” . . . . the cul-de-sac. The video won its contest to explain visually the philosophy of New Urbanism. “What we build is our greatest threat . . . or our greatest hope.” New Urbanism is the philosophy behind the White Flint Sector Plan.