February 26, 2015 4:27 pm ‘City Gas Lines Keep Us Up At Night' NBC10 Investigator Mitch Blacher reveals why work on the City of Philadelphia’s oldest, most brittle gas lines will stretch into the next century. US & World Videos 0:20 Teen girl shot in Southwest Philly, suspect in custody 0:27 FBI inspects American Airlines plane at PHL after bomb threat 1:40 Penn officials urging pro-Palestinian protesters to pack up and leave campus 2:17 Clear the Shelters: Meet Tails 0:38 Jury says Philly owes $16 million for wrongfully convicted man