LONDON - Investigators on three continents worked to fill in the full, frightening picture Friday of a plot to blow U.S. jetliners out of the Atlantic skies, tracking the money trail and seizing more alleged conspirators in the teeming towns of eastern Pakistan. One arrested there, a Briton named Rashid Rauf, is believed to have been the operational planner and to have connections with al-Qaida in Afghanistan, Pakistani and U.S. officials said. British and Pakistani authorities have arrested as many as 41 people in the two countries in connection with the alleged suicidal plan, broken up by British police this...