Carolyn Beeler visits the dredging vessel that’s set to begin deepening the Delaware River in Philadelphia. Elizabeth Fiedler reports on the family of a missing woman who are working to keep her disappearance in the public eye. Maiken Scott tells about a local Peace Corps volunteer’s devastating experience with a common anti-malaria medicine. Mark Eichmann talks with Wilmington’s outgoing mayor James Baker. Peter Crimmins learns about the new season and new music director of the Philadelphia Orchestra.