The chief of the International Monetary Fund [IMF] says the U.S. government’s stalemate over spending and its debt limit is “very, very concerning” and could roll back economic progress around the world. Christine Lagarde, who took over the financial watchdog-and-rescue organization in 2011, said global finance ministers assembled for meetings in Washington last week feeling like Japan had finally turned the corner and that economies in the U.S. and Europe were on the upswing. “And then they found out that the debt ceiling was the issue,” she said Sunday on NBC’s “Meet the Press.” “They found out that the government...