TAUNGPYO, Myanmar (AP) — Workers on the Myanmar side of the border with Bangladesh laid bricks, dug ditches and drilled holes in building frames in preparation Wednesday for the possible repatriation of some of the Rohingya Muslims who have poured into Bangladesh in what's become the world's worst refugee crisis. There was no sign, however, of any of the nearly 700,000 Rohingya chased away by Myanmar security forces. Myanmar invited journalists from The Associated Press and other media to the border to show it's ready for a gradual repatriation.