Men vanish after taking photos of Philly subway system...

Twice in the past two days, SEPTA officials have alerted police to men taking pictures on the Broad Street subway line in South Philadelphia.

On Wednesday, a SEPTA cashier told officers about a man taking pictures at the Lombard-South station, but the man, after being questioned by the cashier about his activities, left before officers arrived.

"We are attempting to identify that male to determine what the nature or the reason for taking the photographs was," Chief Inspector Joseph Sullivan said. ....