Tom MacDonald brings us the latest on the man hunt for the killer or killers of Philadelphia Police Officer Moses Walker Jr. Dave Davies reports the new Chief Recovery Officer for the Chester Upland School District has a questionable record when it comes to public education. We talk with Suzanne Chiavari of American Water about how her company and other utilities are using modern technology to diagnose problems in an aging infrastructure. Franklin Institute Chief Astronomer Derrick Pitts talks about goings on at the International Space Station. Peter Crimmins talks to the man driving the Mars Rover Curiosity. And Chris Satullo wonders what Benjamin Franklin might think of this year’s presidential campaign.