DETROIT -- Plans for a new bridge connecting the U.S. and Canada are moving more slowly than anticipated, partly because Washington doesn't seem to want to pay for a customs plaza on the American side of the span, Michigan Gov. Rick Snyder said. The bridge, one of Snyder's most significant public projects since he took office in 2011, would compete with the privately owned Ambassador Bridge and take vehicles between Detroit and Windsor, Ontario. The Canadian government, which believes another bridge would improve trade, has agreed to pay for most of it and recoup money later through tolls. But the...