August 18, 2009 7:58 am Keep ‘Em Closed The city launches its Keep ‘Em Closed campaign during our heatwave, explaining why the tradition of opening up fire hydrants to cool off is a dangerous one. US & World Videos 0:45 Philly police are making efforts to get ATVs and dirt bikes off the roads before the summer 2:07 Gunmen fire at teens gathered at park in Abington Township, police say 3:23 Data shows significant drop in homicides in Philly so far in 2024 0:30 Crews battling rowhome fire in Allentown 2:28 Tensions rise on UPenn's campus as student protestors refuse to show ID to administrators