OAKLAND — U.S. Postal inspectors still were working Sunday morning to determine who put a suspicious device in a mail collection box and what it was. Postal inspectors and a bomb squad were called to the corner of Stanford and San Pablo avenues around 3 p.m. Saturday after a postal carrier noticed something strange at the bottom of the blue collection box, U.S. Postal Inspector spokesman Jeff Fitch said. The device never exploded, he said. Continue reading.