ROMA, Texas (Reuters) - Among the hundreds of Central American migrants crossing the Rio Grande river daily on rafts from Mexico to Texas, dozens stood out on a recent day. They were generally taller and some wore skirts, stylish shoes and tracksuits, while many of the other migrants wore T-shirts, pants and jeans. U.S. border patrol officers who apprehended them near the river tried to speak to them in Spanish. There was a pause as some of the border crossers explained in broken English that they were Romanians, a Reuters photographer said. Scores of Romanians who are part of the...