<p>Two Hungarian teachers, center and center left, who survived a duck boat crash on Wednesday, are consoled by a U.S. woman, right, who served as a host for a Hungarian student group, as they view the site where two of their students went missing on Thursday. An amphibious sightseeing boat that stalled in the Delaware River was knocked over by an oncoming barge Wednesday, spilling 37 people overboard and leaving two passengers unaccounted for after a frantic rescue ef…

July 9, 2010