Mexico has government vowed to find out whether an explosion that killed 33 people at the headquarters of its state-run oil monopoly Pemex was a deliberate attack or yet another stain on the company's poor safety record.<br /><br />Rescue workers are continued to pull bodies from the debris with the search set to continue until officials can account for everyone inside the Mexico City building.<br /><br />...<br />http://www.euronews.net/
