Here they come, marching into American sunlight. They are grouped in twos, eternal boy-girl, stepping out of the runway beyond the fence in left-center field. The music draws them across the grass, dozens, hundreds, already too many to count. They assemble themselves so tightly, crossing the vast arc of the outfield, that the effect is one of transformation. From a series of linked couples they become one continuous wave, larger all the time, covering the open spaces in navy and white.
