Article Photos: Mexico blast a blow to Pemex's improving safety



Relatives and family members hold a picture of their father who was killed in the Pemex gas explosion on Tuesday, while waiting for word at the PGR facility in Reynosa, Mexico, Wednesday, Sept. 19, 2012. (AP Photo/The Monitor, Delcia Lopez)

Relatives and family members hold a picture of their father who was killed in the Pemex gas explosion on Tuesday, while waiting for word at the PGR facility in Reynosa, Mexico, Wednesday, Sept. 19, 2012. (AP Photo/The Monitor, Delcia Lopez)