Foiled Vatican plot triggers security concerns for Pope's Philadelphia visit

Nearly 20 alleged terrorists were arrested by Italian authorities in a nationwide sweep of suspects who planned to launch attacks on the Vatican. Through wiretap evidence, police say this plot was hatched in March 2010 when a possible suicide bomber from Afghanistan entered the country.
Two of the suspects served as bodyguards for late terror leader Osama Bin Laden. Police say some of the suspects were involved in the 2009 bombing of a Pakistani market when more than 100 were killed.

http://6abc.com/news/foiled-plot-triggers-security-concerns-for-popes-philly-visit/680609/