MUNICH — European and American leaders spent three days pledging cooperation and offering to slap a new coat of paint on the façade of the transatlantic relationship. But the cracks are still showing. The United States was less combative than a year ago in its showing at the Munich Security Conference, when Vice President JD Vance launched a scorching attack on Europe. But the gathering showed that while the alliance continues to function, the old order that bound the two sides of the Atlantic