‘Unpredictable’ Pope Francis worries security team

Pope Francis waves upon his arrival in St. Peter's Square for his inaugural Mass, at the Vatican, Tuesday, March 19, 2013.

VATICAN CITY (AP) — Forgive Pope Francis’ security team for looking a bit nervous.

One pope was shot in St. Peter’s Square while riding in an open vehicle. Another was tackled by a woman with mental problems. So in the early days of Francis’ pontificate, as the pope delights the flock by wading into crowds, it’s only natural that chief Vatican cop Domenico Giani seems on edge.