Three rowhomes collapsed this morning in the Nicetown section of North Philly from an explosion and fire. ... A road rage incident leads to a driver shooting a Philadelphia School public safety officer. ... More talks between Philadelphia’s largest blue collar union and the city are scheduled to pick back up today as the clock ticks to get a new deal done. ... The Pennsylvania Senate has passed a bill that would toughen penalties for anyone caught selling drugs near a rehab center or recovery house. ... Today is Day 11 of the Welcome America Festival. There will be a free concert tonight at the Dell Center to celebrate Philly's black music and culture. And multiple museums have free admission. ... Some parking spaces at Philadelphia International Airport may be off-limits this summer, while the airport upgrades its garages.